Complete fix for OutOfMemoryException in 7z extraction

Co-authored-by: adamhathcock <527620+adamhathcock@users.noreply.github.com>

.config/dotnet-tools.json

@@ -3,11 +3,11 @@
   "isRoot": true,
   "tools": {
     "csharpier": {
-      "version": "1.2.4",
+      "version": "1.2.5",
       "commands": [
         "csharpier"
       ],
       "rollForward": false
     }
   }
-}
+}

.github/workflows/dotnetcore.yml

@@ -1,25 +0,0 @@
-name: SharpCompress
-on:
-  push:
-    branches:
-      - 'master'
-  pull_request:
-    types: [ opened, synchronize, reopened, ready_for_review ]
-
-jobs:
-  build:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [windows-latest, ubuntu-latest]
-
-    steps:
-    - uses: actions/checkout@v6
-    - uses: actions/setup-dotnet@v5
-      with:
-        dotnet-version: 10.0.x
-    - run: dotnet run --project build/build.csproj
-    - uses: actions/upload-artifact@v6
-      with:
-        name: ${{ matrix.os }}-sharpcompress.nupkg
-        path: artifacts/*

.github/workflows/nuget-release.yml

@@ -7,6 +7,10 @@ on:
       - 'release'
     tags:
       - '[0-9]+.[0-9]+.[0-9]+'
+  pull_request:
+    branches:
+      - 'master'
+      - 'release'
 
 permissions:
   contents: read
@@ -49,9 +53,9 @@ jobs:
         name: ${{ matrix.os }}-nuget-package
         path: artifacts/*.nupkg
     
-    # Push to NuGet.org using C# build target (Windows only)
+    # Push to NuGet.org using C# build target (Windows only, not on PRs)
     - name: Push to NuGet
-      if: success() && matrix.os == 'windows-latest'
+      if: success() && matrix.os == 'windows-latest' && github.event_name != 'pull_request'
       run: dotnet run --project build/build.csproj -- push-to-nuget
       env:
         NUGET_API_KEY: ${{ secrets.NUGET_API_KEY }}

Directory.Packages.props

@@ -7,14 +7,13 @@
     <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
     <PackageVersion Include="Mono.Posix.NETStandard" Version="1.0.0" />
-    <PackageVersion Include="SimpleExec" Version="12.1.0" />
+    <PackageVersion Include="SimpleExec" Version="13.0.0" />
     <PackageVersion Include="System.Text.Encoding.CodePages" Version="10.0.0" />
     <PackageVersion Include="System.Buffers" Version="4.6.1" />
     <PackageVersion Include="System.Memory" Version="4.6.3" />
     <PackageVersion Include="xunit" Version="2.9.3" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.5" />
-    <PackageVersion Include="Microsoft.NET.ILLink.Tasks" Version="10.0.0" />
-    <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
-    <PackageVersion Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" />
+    <GlobalPackageReference Include="Microsoft.SourceLink.GitHub" Version="10.0.102" />
+    <GlobalPackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" />
   </ItemGroup>
 </Project>

FORMATS.md

@@ -10,7 +10,10 @@
 
 | Archive Format         | Compression Format(s)                             | Compress/Decompress | Archive API     | Reader API | Writer API    |
 | ---------------------- | ------------------------------------------------- | ------------------- | --------------- | ---------- | ------------- |
-| Rar                    | Rar                                               | Decompress (1)      | RarArchive      | RarReader  | N/A           |
+| Ace                    | None                                              | Decompress          | N/A             | AceReader  | N/A           |
+| Arc                    | None, Packed, Squeezed, Crunched                  | Decompress          | N/A             | ArcReader  | N/A           |
+| Arj                    | None                                              | Decompress          | N/A             | ArjReader  | N/A           |
+| Rar                    | Rar                                               | Decompress          | RarArchive      | RarReader  | N/A           |
 | Zip (2)                | None, Shrink, Reduce, Implode, DEFLATE, Deflate64, BZip2, LZMA/LZMA2, PPMd                           | Both                | ZipArchive      | ZipReader  | ZipWriter     | 
 | Tar                    | None                                              | Both                | TarArchive      | TarReader  | TarWriter (3) |
 | Tar.GZip               | DEFLATE                                           | Both                | TarArchive      | TarReader  | TarWriter (3) |

OLD_CHANGELOG.md

@@ -0,0 +1,142 @@
+
+# Version Log
+
+* [Releases](https://github.com/adamhathcock/sharpcompress/releases)
+
+## Version 0.18
+
+* [Now on Github releases](https://github.com/adamhathcock/sharpcompress/releases/tag/0.18)
+
+## Version 0.17.1
+
+* Fix - [Bug Fix for .NET Core on Windows](https://github.com/adamhathcock/sharpcompress/pull/257)
+
+## Version 0.17.0
+
+* New - Full LZip support! Can read and write LZip files and Tars inside LZip files. [Make LZip a first class citizen. #241](https://github.com/adamhathcock/sharpcompress/issues/241)
+* New - XZ read support! Can read XZ files and Tars inside XZ files. [XZ in SharpCompress #91](https://github.com/adamhathcock/sharpcompress/issues/94)
+* Fix - [Regression - zip file writing on seekable streams always assumed stream start was 0. Introduced with Zip64 writing.](https://github.com/adamhathcock/sharpcompress/issues/244)
+* Fix - [Zip files with post-data descriptors can be properly skipped via decompression](https://github.com/adamhathcock/sharpcompress/issues/162)
+
+## Version 0.16.2
+
+* Fix [.NET 3.5 should support files and cryptography (was a regression from 0.16.0)](https://github.com/adamhathcock/sharpcompress/pull/251)
+* Fix [Zip per entry compression customization wrote the wrong method into the zip archive](https://github.com/adamhathcock/sharpcompress/pull/249)
+
+## Version 0.16.1
+
+* Fix [Preserve compression method when getting a compressed stream](https://github.com/adamhathcock/sharpcompress/pull/235)
+* Fix [RAR entry key normalization fix](https://github.com/adamhathcock/sharpcompress/issues/201)
+
+## Version 0.16.0
+
+* Breaking - [Progress Event Tracking rethink](https://github.com/adamhathcock/sharpcompress/pull/226)
+* Update to VS2017 - [VS2017](https://github.com/adamhathcock/sharpcompress/pull/231) - Framework targets have been changed.
+* New - [Add Zip64 writing](https://github.com/adamhathcock/sharpcompress/pull/211)
+* [Fix invalid/mismatching Zip version flags.](https://github.com/adamhathcock/sharpcompress/issues/164) - This allows nuget/System.IO.Packaging to read zip files generated by SharpCompress
+* [Fix 7Zip directory hiding](https://github.com/adamhathcock/sharpcompress/pull/215/files)
+* [Verify RAR CRC headers](https://github.com/adamhathcock/sharpcompress/pull/220)
+
+## Version 0.15.2
+
+* [Fix invalid headers](https://github.com/adamhathcock/sharpcompress/pull/210) - fixes an issue creating large-ish zip archives that was introduced with zip64 reading.
+
+## Version 0.15.1
+
+* [Zip64 extending information and ZipReader](https://github.com/adamhathcock/sharpcompress/pull/206)
+
+## Version 0.15.0
+
+* [Add zip64 support for ZipArchive extraction](https://github.com/adamhathcock/sharpcompress/pull/205)
+
+## Version 0.14.1
+
+* [.NET Assemblies aren't strong named](https://github.com/adamhathcock/sharpcompress/issues/158)
+* [Pkware encryption for Zip files didn't allow for multiple reads of an entry](https://github.com/adamhathcock/sharpcompress/issues/197)
+* [GZip Entry couldn't be read multiple times](https://github.com/adamhathcock/sharpcompress/issues/198)
+
+## Version 0.14.0
+
+* [Support for LZip reading in for Tars](https://github.com/adamhathcock/sharpcompress/pull/191)
+
+## Version 0.13.1
+
+* [Fix null password on ReaderFactory. Fix null options on SevenZipArchive](https://github.com/adamhathcock/sharpcompress/pull/188)
+* [Make PpmdProperties lazy to avoid unnecessary allocations.](https://github.com/adamhathcock/sharpcompress/pull/185)
+
+## Version 0.13.0
+
+* Breaking change: Big refactor of Options on API.
+* 7Zip supports Deflate
+
+## Version 0.12.4
+
+* Forward only zip issue fix https://github.com/adamhathcock/sharpcompress/issues/160
+* Try to fix frameworks again by copying targets from JSON.NET
+
+## Version 0.12.3
+
+* 7Zip fixes https://github.com/adamhathcock/sharpcompress/issues/73
+* Maybe all profiles will work with project.json now
+
+## Version 0.12.2
+
+* Support Profile 259 again
+
+## Version 0.12.1
+
+* Support Silverlight 5
+
+## Version 0.12.0
+
+* .NET Core RTM!
+* Bug fix for Tar long paths
+
+## Version 0.11.6
+
+* Bug fix for global header in Tar
+* Writers now have a leaveOpen `bool` overload. They won't close streams if not-requested to.
+
+## Version 0.11.5
+
+* Bug fix in Skip method
+
+## Version 0.11.4
+
+* SharpCompress is now endian neutral (matters for Mono platforms)
+* Fix for Inflate (need to change implementation)
+* Fixes for RAR detection
+
+## Version 0.11.1
+
+* Added Cancel on IReader
+* Removed .NET 2.0 support and LinqBridge dependency
+
+## Version 0.11
+
+* Been over a year, contains mainly fixes from contributors!
+* Possible breaking change: ArchiveEncoding is UTF8 by default now.
+* TAR supports writing long names using longlink
+* RAR Protect Header added
+
+## Version 0.10.3
+
+* Finally fixed Disposal issue when creating a new archive with the Archive API
+
+## Version 0.10.2
+
+* Fixed Rar Header reading for invalid extended time headers.
+* Windows Store assembly is now strong named
+* Known issues with Long Tar names being worked on
+* Updated to VS2013
+* Portable targets SL5 and Windows Phone 8 (up from SL4 and WP7)
+
+## Version 0.10.1
+
+* Fixed 7Zip extraction performance problem
+
+## Version 0.10:
+
+* Added support for RAR Decryption (thanks to https://github.com/hrasyid)
+* Embedded some BouncyCastle crypto classes to allow RAR Decryption and Winzip AES Decryption in Portable and Windows Store DLLs
+* Built in Release (I think)

README.md

@@ -4,7 +4,7 @@ SharpCompress is a compression library in pure C# for .NET Framework 4.8, .NET 8
 
 The major feature is support for non-seekable streams so large files can be processed on the fly (i.e. download stream).
 
-**NEW:** All I/O operations now support async/await for improved performance and scalability. See the [Async Usage](#async-usage) section below.
+**NEW:** All I/O operations now support async/await for improved performance and scalability. See the [USAGE.md](USAGE.md#async-examples) for examples.
 
 GitHub Actions Build -
 [![SharpCompress](https://github.com/adamhathcock/sharpcompress/actions/workflows/dotnetcore.yml/badge.svg)](https://github.com/adamhathcock/sharpcompress/actions/workflows/dotnetcore.yml)
@@ -34,235 +34,11 @@ Hi everyone. I hope you're using SharpCompress and finding it useful. Please giv
 
 Please do not email me directly to ask for help. If you think there is a real issue, please report it here.
 
-## Async Usage
-
-SharpCompress now provides full async/await support for all I/O operations, allowing for better performance and scalability in modern applications.
-
-### Async Reading Examples
-
-Extract entries asynchronously:
-```csharp
-using (Stream stream = File.OpenRead("archive.zip"))
-using (var reader = ReaderFactory.Open(stream))
-{
-    while (reader.MoveToNextEntry())
-    {
-        if (!reader.Entry.IsDirectory)
-        {
-            // Async extraction
-            await reader.WriteEntryToDirectoryAsync(
-                @"C:\temp",
-                new ExtractionOptions() { ExtractFullPath = true, Overwrite = true },
-                cancellationToken
-            );
-        }
-    }
-}
-```
-
-Extract all entries to directory asynchronously:
-```csharp
-using (Stream stream = File.OpenRead("archive.tar.gz"))
-using (var reader = ReaderFactory.Open(stream))
-{
-    await reader.WriteAllToDirectoryAsync(
-        @"C:\temp",
-        new ExtractionOptions() { ExtractFullPath = true, Overwrite = true },
-        cancellationToken
-    );
-}
-```
-
-Open entry stream asynchronously:
-```csharp
-using (var archive = ZipArchive.Open("archive.zip"))
-{
-    foreach (var entry in archive.Entries.Where(e => !e.IsDirectory))
-    {
-        using (var entryStream = await entry.OpenEntryStreamAsync(cancellationToken))
-        {
-            // Process stream asynchronously
-            await entryStream.CopyToAsync(outputStream, cancellationToken);
-        }
-    }
-}
-```
-
-### Async Writing Examples
-
-Write files asynchronously:
-```csharp
-using (Stream stream = File.OpenWrite("output.zip"))
-using (var writer = WriterFactory.Open(stream, ArchiveType.Zip, CompressionType.Deflate))
-{
-    await writer.WriteAsync("file1.txt", fileStream, DateTime.Now, cancellationToken);
-}
-```
-
-Write all files from directory asynchronously:
-```csharp
-using (Stream stream = File.OpenWrite("output.tar.gz"))
-using (var writer = WriterFactory.Open(stream, ArchiveType.Tar, new WriterOptions(CompressionType.GZip)))
-{
-    await writer.WriteAllAsync(@"D:\files", "*", SearchOption.AllDirectories, cancellationToken);
-}
-```
-
-All async methods support `CancellationToken` for graceful cancellation of long-running operations.
-
 ## Want to contribute?
 
 I'm always looking for help or ideas. Please submit code or email with ideas. Unfortunately, just letting me know you'd like to help is not enough because I really have no overall plan of what needs to be done. I'll definitely accept code submissions and add you as a member of the project!
 
-## TODOs (always lots)
-
-* RAR 5 decryption crc check support
-* 7Zip writing
-* Zip64 (Need writing and extend Reading)
-* Multi-volume Zip support.
-* ZStandard writing
-
-## Version Log
-
-* [Releases](https://github.com/adamhathcock/sharpcompress/releases)
-
-### Version 0.18
-
-* [Now on Github releases](https://github.com/adamhathcock/sharpcompress/releases/tag/0.18)
-
-### Version 0.17.1
-
-* Fix - [Bug Fix for .NET Core on Windows](https://github.com/adamhathcock/sharpcompress/pull/257)
-
-### Version 0.17.0
-
-* New - Full LZip support! Can read and write LZip files and Tars inside LZip files. [Make LZip a first class citizen. #241](https://github.com/adamhathcock/sharpcompress/issues/241)
-* New - XZ read support! Can read XZ files and Tars inside XZ files. [XZ in SharpCompress #91](https://github.com/adamhathcock/sharpcompress/issues/94)
-* Fix - [Regression - zip file writing on seekable streams always assumed stream start was 0. Introduced with Zip64 writing.](https://github.com/adamhathcock/sharpcompress/issues/244)
-* Fix - [Zip files with post-data descriptors can be properly skipped via decompression](https://github.com/adamhathcock/sharpcompress/issues/162)
-
-### Version 0.16.2
-
-* Fix [.NET 3.5 should support files and cryptography (was a regression from 0.16.0)](https://github.com/adamhathcock/sharpcompress/pull/251)
-* Fix [Zip per entry compression customization wrote the wrong method into the zip archive](https://github.com/adamhathcock/sharpcompress/pull/249)
-
-### Version 0.16.1
-
-* Fix [Preserve compression method when getting a compressed stream](https://github.com/adamhathcock/sharpcompress/pull/235)
-* Fix [RAR entry key normalization fix](https://github.com/adamhathcock/sharpcompress/issues/201)
-
-### Version 0.16.0
-
-* Breaking - [Progress Event Tracking rethink](https://github.com/adamhathcock/sharpcompress/pull/226)
-* Update to VS2017 - [VS2017](https://github.com/adamhathcock/sharpcompress/pull/231) - Framework targets have been changed.
-* New - [Add Zip64 writing](https://github.com/adamhathcock/sharpcompress/pull/211)
-* [Fix invalid/mismatching Zip version flags.](https://github.com/adamhathcock/sharpcompress/issues/164) - This allows nuget/System.IO.Packaging to read zip files generated by SharpCompress
-* [Fix 7Zip directory hiding](https://github.com/adamhathcock/sharpcompress/pull/215/files)
-* [Verify RAR CRC headers](https://github.com/adamhathcock/sharpcompress/pull/220)
-
-### Version 0.15.2
-
-* [Fix invalid headers](https://github.com/adamhathcock/sharpcompress/pull/210) - fixes an issue creating large-ish zip archives that was introduced with zip64 reading.
-
-### Version 0.15.1
-
-* [Zip64 extending information and ZipReader](https://github.com/adamhathcock/sharpcompress/pull/206)
-
-### Version 0.15.0
-
-* [Add zip64 support for ZipArchive extraction](https://github.com/adamhathcock/sharpcompress/pull/205)
-
-### Version 0.14.1
-
-* [.NET Assemblies aren't strong named](https://github.com/adamhathcock/sharpcompress/issues/158)
-* [Pkware encryption for Zip files didn't allow for multiple reads of an entry](https://github.com/adamhathcock/sharpcompress/issues/197)
-* [GZip Entry couldn't be read multiple times](https://github.com/adamhathcock/sharpcompress/issues/198)
-
-### Version 0.14.0
-
-* [Support for LZip reading in for Tars](https://github.com/adamhathcock/sharpcompress/pull/191)
-
-### Version 0.13.1
-
-* [Fix null password on ReaderFactory. Fix null options on SevenZipArchive](https://github.com/adamhathcock/sharpcompress/pull/188)
-* [Make PpmdProperties lazy to avoid unnecessary allocations.](https://github.com/adamhathcock/sharpcompress/pull/185)
-
-### Version 0.13.0
-
-* Breaking change: Big refactor of Options on API.
-* 7Zip supports Deflate
-
-### Version 0.12.4
-
-* Forward only zip issue fix https://github.com/adamhathcock/sharpcompress/issues/160
-* Try to fix frameworks again by copying targets from JSON.NET
-
-### Version 0.12.3
-
-* 7Zip fixes https://github.com/adamhathcock/sharpcompress/issues/73
-* Maybe all profiles will work with project.json now
-
-### Version 0.12.2
-
-* Support Profile 259 again
-
-### Version 0.12.1
-
-* Support Silverlight 5
-
-### Version 0.12.0
-
-* .NET Core RTM!
-* Bug fix for Tar long paths
-
-### Version 0.11.6
-
-* Bug fix for global header in Tar
-* Writers now have a leaveOpen `bool` overload. They won't close streams if not-requested to.
-
-### Version 0.11.5
-
-* Bug fix in Skip method
-
-### Version 0.11.4
-
-* SharpCompress is now endian neutral (matters for Mono platforms)
-* Fix for Inflate (need to change implementation)
-* Fixes for RAR detection
-
-### Version 0.11.1
-
-* Added Cancel on IReader
-* Removed .NET 2.0 support and LinqBridge dependency
-
-### Version 0.11
-
-* Been over a year, contains mainly fixes from contributors!
-* Possible breaking change: ArchiveEncoding is UTF8 by default now.
-* TAR supports writing long names using longlink
-* RAR Protect Header added
-
-### Version 0.10.3
-
-* Finally fixed Disposal issue when creating a new archive with the Archive API
-
-### Version 0.10.2
-
-* Fixed Rar Header reading for invalid extended time headers.
-* Windows Store assembly is now strong named
-* Known issues with Long Tar names being worked on
-* Updated to VS2013
-* Portable targets SL5 and Windows Phone 8 (up from SL4 and WP7)
-
-### Version 0.10.1
-
-* Fixed 7Zip extraction performance problem
-
-### Version 0.10:
-
-* Added support for RAR Decryption (thanks to https://github.com/hrasyid)
-* Embedded some BouncyCastle crypto classes to allow RAR Decryption and Winzip AES Decryption in Portable and Windows Store DLLs
-* Built in Release (I think)
+## Notes
 
 XZ implementation based on: https://github.com/sambott/XZ.NET by @sambott
 

SharpCompress.sln

@@ -20,7 +20,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Config", "Config", "{CDB425
 		.editorconfig = .editorconfig
 		Directory.Packages.props = Directory.Packages.props
 		NuGet.config = NuGet.config
-		.github\workflows\dotnetcore.yml = .github\workflows\dotnetcore.yml
+		.github\workflows\nuget-release.yml = .github\workflows\nuget-release.yml
 		USAGE.md = USAGE.md
 		README.md = README.md
 		FORMATS.md = FORMATS.md

USAGE.md

@@ -113,38 +113,26 @@ using (var archive = RarArchive.Open("Test.rar"))
 }
 ```
 
-### Extract solid Rar or 7Zip archives with manual progress reporting
+### Extract solid Rar or 7Zip archives with progress reporting
 
 `ExtractAllEntries` only works for solid archives (Rar) or 7Zip archives. For optimal performance with these archive types, use this method:
 
 ```C#
-using (var archive = RarArchive.Open("archive.rar")) // Must be solid Rar or 7Zip
+using SharpCompress.Common;
+using SharpCompress.Readers;
+
+var progress = new Progress<ProgressReport>(report =>
 {
-    if (archive.IsSolid || archive.Type == ArchiveType.SevenZip)
+    Console.WriteLine($"Extracting {report.EntryPath}: {report.PercentComplete}%");
+});
+
+using (var archive = RarArchive.Open("archive.rar", new ReaderOptions { Progress = progress })) // Must be solid Rar or 7Zip
+{
+    archive.WriteToDirectory(@"D:\output", new ExtractionOptions()
     {
-        // Calculate total size for progress reporting
-        double totalSize = archive.Entries.Where(e => !e.IsDirectory).Sum(e => e.Size);
-        long completed = 0;
-
-        using (var reader = archive.ExtractAllEntries())
-        {
-            while (reader.MoveToNextEntry())
-            {
-                if (!reader.Entry.IsDirectory)
-                {
-                    reader.WriteEntryToDirectory(@"D:\output", new ExtractionOptions()
-                    {
-                        ExtractFullPath = true,
-                        Overwrite = true
-                    });
-
-                    completed += reader.Entry.Size;
-                    double progress = completed / totalSize;
-                    Console.WriteLine($"Progress: {progress:P}");
-                }
-            }
-        }
-    }
+        ExtractFullPath = true,
+        Overwrite = true
+    });
 }
 ```
 

build/Program.cs

@@ -230,7 +230,7 @@ static async Task<(string version, bool isPrerelease)> GetVersion()
     }
     else
     {
-        // Not tagged - create prerelease version based on next minor version
+        // Not tagged - create prerelease version
         var allTags = (await GetGitOutput("tag", "--list"))
             .Split('\n', StringSplitOptions.RemoveEmptyEntries)
             .Where(tag => Regex.IsMatch(tag.Trim(), @"^\d+\.\d+\.\d+$"))
@@ -240,8 +240,22 @@ static async Task<(string version, bool isPrerelease)> GetVersion()
         var lastTag = allTags.OrderBy(tag => Version.Parse(tag)).LastOrDefault() ?? "0.0.0";
         var lastVersion = Version.Parse(lastTag);
 
-        // Increment minor version for next release
-        var nextVersion = new Version(lastVersion.Major, lastVersion.Minor + 1, 0);
+        // Determine version increment based on branch
+        var currentBranch = await GetCurrentBranch();
+        Version nextVersion;
+
+        if (currentBranch == "release")
+        {
+            // Release branch: increment patch version
+            nextVersion = new Version(lastVersion.Major, lastVersion.Minor, lastVersion.Build + 1);
+            Console.WriteLine($"Building prerelease for release branch (patch increment)");
+        }
+        else
+        {
+            // Master or other branches: increment minor version
+            nextVersion = new Version(lastVersion.Major, lastVersion.Minor + 1, 0);
+            Console.WriteLine($"Building prerelease for {currentBranch} branch (minor increment)");
+        }
 
         // Use commit count since the last version tag if available; otherwise, fall back to total count
         var revListArgs = allTags.Any() ? $"--count {lastTag}..HEAD" : "--count HEAD";
@@ -253,6 +267,28 @@ static async Task<(string version, bool isPrerelease)> GetVersion()
     }
 }
 
+static async Task<string> GetCurrentBranch()
+{
+    // In GitHub Actions, GITHUB_REF_NAME contains the branch name
+    var githubRefName = Environment.GetEnvironmentVariable("GITHUB_REF_NAME");
+    if (!string.IsNullOrEmpty(githubRefName))
+    {
+        return githubRefName;
+    }
+
+    // Fallback to git command for local builds
+    try
+    {
+        var (output, _) = await ReadAsync("git", "branch --show-current");
+        return output.Trim();
+    }
+    catch (Exception ex)
+    {
+        Console.WriteLine($"Warning: Could not determine current branch: {ex.Message}");
+        return "unknown";
+    }
+}
+
 static async Task<string> GetGitOutput(string command, string args)
 {
     try

build/packages.lock.json

@@ -14,11 +14,45 @@
         "resolved": "1.1.9",
         "contentHash": "AfK5+ECWYTP7G3AAdnU8IfVj+QpGjrh9GC2mpdcJzCvtQ4pnerAGwHsxJ9D4/RnhDUz2DSzd951O/lQjQby2Sw=="
       },
+      "Microsoft.NETFramework.ReferenceAssemblies": {
+        "type": "Direct",
+        "requested": "[1.0.3, )",
+        "resolved": "1.0.3",
+        "contentHash": "vUc9Npcs14QsyOD01tnv/m8sQUnGTGOw1BCmKcv77LBJY7OxhJ+zJF7UD/sCL3lYNFuqmQEVlkfS4Quif6FyYg==",
+        "dependencies": {
+          "Microsoft.NETFramework.ReferenceAssemblies.net461": "1.0.3"
+        }
+      },
+      "Microsoft.SourceLink.GitHub": {
+        "type": "Direct",
+        "requested": "[10.0.102, )",
+        "resolved": "10.0.102",
+        "contentHash": "Oxq3RCIJSdtpIU4hLqO7XaDe/Ra3HS9Wi8rJl838SAg6Zu1iQjerA0+xXWBgUFYbgknUGCLOU0T+lzMLkvY9Qg==",
+        "dependencies": {
+          "Microsoft.Build.Tasks.Git": "10.0.102",
+          "Microsoft.SourceLink.Common": "10.0.102"
+        }
+      },
       "SimpleExec": {
         "type": "Direct",
-        "requested": "[12.1.0, )",
-        "resolved": "12.1.0",
-        "contentHash": "PcCSAlMcKr5yTd571MgEMoGmoSr+omwziq2crB47lKP740lrmjuBocAUXHj+Q6LR6aUDFyhszot2wbtFJTClkA=="
+        "requested": "[13.0.0, )",
+        "resolved": "13.0.0",
+        "contentHash": "zcCR1pupa1wI1VqBULRiQKeHKKZOuJhi/K+4V5oO+rHJZlaOD53ViFo1c3PavDoMAfSn/FAXGAWpPoF57rwhYg=="
+      },
+      "Microsoft.Build.Tasks.Git": {
+        "type": "Transitive",
+        "resolved": "10.0.102",
+        "contentHash": "0i81LYX31U6UiXz4NOLbvc++u+/mVDmOt+PskrM/MygpDxkv9THKQyRUmavBpLK6iBV0abNWnn+CQgSRz//Pwg=="
+      },
+      "Microsoft.NETFramework.ReferenceAssemblies.net461": {
+        "type": "Transitive",
+        "resolved": "1.0.3",
+        "contentHash": "AmOJZwCqnOCNp6PPcf9joyogScWLtwy0M1WkqfEQ0M9nYwyDD7EX9ZjscKS5iYnyvteX7kzSKFCKt9I9dXA6mA=="
+      },
+      "Microsoft.SourceLink.Common": {
+        "type": "Transitive",
+        "resolved": "10.0.102",
+        "contentHash": "Mk1IMb9q5tahC2NltxYXFkLBtuBvfBoCQ3pIxYQWfzbCE9o1OB9SsHe0hnNGo7lWgTA/ePbFAJLWu6nLL9K17A=="
       }
     }
   }

src/SharpCompress/Archives/ArchiveFactory.cs

@@ -166,22 +166,14 @@ public static class ArchiveFactory
         );
     }
 
-    public static bool IsArchive(
-        string filePath,
-        out ArchiveType? type,
-        int bufferSize = ReaderOptions.DefaultBufferSize
-    )
+    public static bool IsArchive(string filePath, out ArchiveType? type)
     {
         filePath.NotNullOrEmpty(nameof(filePath));
         using Stream s = File.OpenRead(filePath);
-        return IsArchive(s, out type, bufferSize);
+        return IsArchive(s, out type);
     }
 
-    public static bool IsArchive(
-        Stream stream,
-        out ArchiveType? type,
-        int bufferSize = ReaderOptions.DefaultBufferSize
-    )
+    public static bool IsArchive(Stream stream, out ArchiveType? type)
     {
         type = null;
         stream.NotNull(nameof(stream));

src/SharpCompress/Archives/AutoArchiveFactory.cs

@@ -14,11 +14,8 @@ class AutoArchiveFactory : IArchiveFactory
 
     public IEnumerable<string> GetSupportedExtensions() => throw new NotSupportedException();
 
-    public bool IsArchive(
-        Stream stream,
-        string? password = null,
-        int bufferSize = ReaderOptions.DefaultBufferSize
-    ) => throw new NotSupportedException();
+    public bool IsArchive(Stream stream, string? password = null) =>
+        throw new NotSupportedException();
 
     public FileInfo? GetFilePart(int index, FileInfo part1) => throw new NotSupportedException();
 

src/SharpCompress/Archives/IArchiveEntryExtensions.cs

@@ -9,8 +9,6 @@ namespace SharpCompress.Archives;
 
 public static class IArchiveEntryExtensions
 {
-    private const int BufferSize = 81920;
-
     /// <param name="archiveEntry">The archive entry to extract.</param>
     extension(IArchiveEntry archiveEntry)
     {
@@ -28,7 +26,7 @@ public static class IArchiveEntryExtensions
 
             using var entryStream = archiveEntry.OpenEntryStream();
             var sourceStream = WrapWithProgress(entryStream, archiveEntry, progress);
-            sourceStream.CopyTo(streamToWriteTo, BufferSize);
+            sourceStream.CopyTo(streamToWriteTo, Constants.BufferSize);
         }
 
         /// <summary>
@@ -51,7 +49,7 @@ public static class IArchiveEntryExtensions
             using var entryStream = await archiveEntry.OpenEntryStreamAsync(cancellationToken);
             var sourceStream = WrapWithProgress(entryStream, archiveEntry, progress);
             await sourceStream
-                .CopyToAsync(streamToWriteTo, BufferSize, cancellationToken)
+                .CopyToAsync(streamToWriteTo, Constants.BufferSize, cancellationToken)
                 .ConfigureAwait(false);
         }
     }

src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs

@@ -212,10 +212,31 @@ public class SevenZipArchive : AbstractArchive<SevenZipArchiveEntry, SevenZipVol
     public override long TotalSize =>
         _database?._packSizes.Aggregate(0L, (total, packSize) => total + packSize) ?? 0;
 
-    private sealed class SevenZipReader : AbstractReader<SevenZipEntry, SevenZipVolume>
+    internal sealed class SevenZipReader : AbstractReader<SevenZipEntry, SevenZipVolume>
     {
         private readonly SevenZipArchive _archive;
         private SevenZipEntry? _currentEntry;
+        private Stream? _currentFolderStream;
+        private CFolder? _currentFolder;
+
+        /// <summary>
+        /// Enables internal diagnostics for tests.
+        /// When disabled (default), diagnostics properties return null to avoid exposing internal state.
+        /// </summary>
+        internal bool DiagnosticsEnabled { get; set; }
+
+        /// <summary>
+        /// Current folder instance used to decide whether the solid folder stream should be reused.
+        /// Only available when <see cref="DiagnosticsEnabled"/> is true.
+        /// </summary>
+        internal object? DiagnosticsCurrentFolder => DiagnosticsEnabled ? _currentFolder : null;
+
+        /// <summary>
+        /// Current shared folder stream instance.
+        /// Only available when <see cref="DiagnosticsEnabled"/> is true.
+        /// </summary>
+        internal Stream? DiagnosticsCurrentFolderStream =>
+            DiagnosticsEnabled ? _currentFolderStream : null;
 
         internal SevenZipReader(ReaderOptions readerOptions, SevenZipArchive archive)
             : base(readerOptions, ArchiveType.SevenZip) => this._archive = archive;
@@ -231,9 +252,10 @@ public class SevenZipArchive : AbstractArchive<SevenZipArchiveEntry, SevenZipVol
                 _currentEntry = dir;
                 yield return dir;
             }
-            // For non-directory entries, yield them without creating shared streams
-            // Each call to GetEntryStream() will create a fresh decompression stream
-            // to avoid state corruption issues with async operations
+            // For solid archives (entries in the same folder share a compressed stream),
+            // we must iterate entries sequentially and maintain the folder stream state
+            // across entries in the same folder to avoid recreating the decompression
+            // stream for each file, which breaks contiguous streaming.
             foreach (var entry in entries.Where(x => !x.IsDirectory))
             {
                 _currentEntry = entry;
@@ -243,19 +265,53 @@ public class SevenZipArchive : AbstractArchive<SevenZipArchiveEntry, SevenZipVol
 
         protected override EntryStream GetEntryStream()
         {
-            // Create a fresh decompression stream for each file (no state sharing).
-            // However, the LZMA decoder has bugs in its async implementation that cause
-            // state corruption even on fresh streams. The SyncOnlyStream wrapper
-            // works around these bugs by forcing async operations to use sync equivalents.
-            //
-            // TODO: Fix the LZMA decoder async bugs (in LzmaStream, Decoder, OutWindow)
-            // so this wrapper is no longer necessary.
             var entry = _currentEntry.NotNull("currentEntry is not null");
             if (entry.IsDirectory)
             {
                 return CreateEntryStream(Stream.Null);
             }
-            return CreateEntryStream(new SyncOnlyStream(entry.FilePart.GetCompressedStream()));
+
+            var filePart = (SevenZipFilePart)entry.FilePart;
+            if (!filePart.Header.HasStream)
+            {
+                // Entries with no underlying stream (e.g., empty files or anti-items)
+                // should return an empty stream, matching previous behavior.
+                return CreateEntryStream(Stream.Null);
+            }
+
+            var folder = filePart.Folder;
+            // Check if we're starting a new folder - dispose old folder stream if needed
+            if (folder != _currentFolder)
+            {
+                _currentFolderStream?.Dispose();
+                _currentFolderStream = null;
+                _currentFolder = folder;
+            }
+
+            // Create the folder stream once per folder
+            if (_currentFolderStream is null)
+            {
+                _currentFolderStream = _archive._database!.GetFolderStream(
+                    _archive.Volumes.Single().Stream,
+                    folder!,
+                    _archive._database.PasswordProvider
+                );
+            }
+
+            // Wrap with SyncOnlyStream to work around LZMA async bugs
+            // Return a ReadOnlySubStream that reads from the shared folder stream
+            return CreateEntryStream(
+                new SyncOnlyStream(
+                    new ReadOnlySubStream(_currentFolderStream, entry.Size, leaveOpen: true)
+                )
+            );
+        }
+
+        public override void Dispose()
+        {
+            _currentFolderStream?.Dispose();
+            _currentFolderStream = null;
+            base.Dispose();
         }
     }
 

src/SharpCompress/Archives/Tar/TarArchive.cs

@@ -180,7 +180,7 @@ public class TarArchive : AbstractWritableArchive<TarArchiveEntry, TarVolume>
                         using (var entryStream = entry.OpenEntryStream())
                         {
                             using var memoryStream = new MemoryStream();
-                            entryStream.CopyTo(memoryStream);
+                            entryStream.CopyTo(memoryStream, Constants.BufferSize);
                             memoryStream.Position = 0;
                             var bytes = memoryStream.ToArray();
 

src/SharpCompress/Archives/Zip/ZipArchive.cs

@@ -124,38 +124,27 @@ public class ZipArchive : AbstractWritableArchive<ZipArchiveEntry, ZipVolume>
         );
     }
 
-    public static bool IsZipFile(
-        string filePath,
-        string? password = null,
-        int bufferSize = ReaderOptions.DefaultBufferSize
-    ) => IsZipFile(new FileInfo(filePath), password, bufferSize);
+    public static bool IsZipFile(string filePath, string? password = null) =>
+        IsZipFile(new FileInfo(filePath), password);
 
-    public static bool IsZipFile(
-        FileInfo fileInfo,
-        string? password = null,
-        int bufferSize = ReaderOptions.DefaultBufferSize
-    )
+    public static bool IsZipFile(FileInfo fileInfo, string? password = null)
     {
         if (!fileInfo.Exists)
         {
             return false;
         }
         using Stream stream = fileInfo.OpenRead();
-        return IsZipFile(stream, password, bufferSize);
+        return IsZipFile(stream, password);
     }
 
-    public static bool IsZipFile(
-        Stream stream,
-        string? password = null,
-        int bufferSize = ReaderOptions.DefaultBufferSize
-    )
+    public static bool IsZipFile(Stream stream, string? password = null)
     {
         var headerFactory = new StreamingZipHeaderFactory(password, new ArchiveEncoding(), null);
         try
         {
             if (stream is not SharpCompressStream)
             {
-                stream = new SharpCompressStream(stream, bufferSize: bufferSize);
+                stream = new SharpCompressStream(stream, bufferSize: Constants.BufferSize);
             }
 
             var header = headerFactory
@@ -177,18 +166,14 @@ public class ZipArchive : AbstractWritableArchive<ZipArchiveEntry, ZipVolume>
         }
     }
 
-    public static bool IsZipMulti(
-        Stream stream,
-        string? password = null,
-        int bufferSize = ReaderOptions.DefaultBufferSize
-    )
+    public static bool IsZipMulti(Stream stream, string? password = null)
     {
         var headerFactory = new StreamingZipHeaderFactory(password, new ArchiveEncoding(), null);
         try
         {
             if (stream is not SharpCompressStream)
             {
-                stream = new SharpCompressStream(stream, bufferSize: bufferSize);
+                stream = new SharpCompressStream(stream, bufferSize: Constants.BufferSize);
             }
 
             var header = headerFactory
@@ -229,7 +214,7 @@ public class ZipArchive : AbstractWritableArchive<ZipArchiveEntry, ZipVolume>
         if (streams.Count() > 1) //test part 2 - true = multipart not split
         {
             streams[1].Position += 4; //skip the POST_DATA_DESCRIPTOR to prevent an exception
-            var isZip = IsZipFile(streams[1], ReaderOptions.Password, ReaderOptions.BufferSize);
+            var isZip = IsZipFile(streams[1], ReaderOptions.Password);
             streams[1].Position -= 4;
             if (isZip)
             {

src/SharpCompress/Common/Ace/AceCrc.cs

@@ -0,0 +1,61 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SharpCompress.Common.Ace
+{
+    public class AceCrc
+    {
+        // CRC-32 lookup table (standard polynomial 0xEDB88320, reflected)
+        private static readonly uint[] Crc32Table = GenerateTable();
+
+        private static uint[] GenerateTable()
+        {
+            var table = new uint[256];
+
+            for (int i = 0; i < 256; i++)
+            {
+                uint crc = (uint)i;
+
+                for (int j = 0; j < 8; j++)
+                {
+                    if ((crc & 1) != 0)
+                        crc = (crc >> 1) ^ 0xEDB88320u;
+                    else
+                        crc >>= 1;
+                }
+
+                table[i] = crc;
+            }
+
+            return table;
+        }
+
+        /// <summary>
+        /// Calculate ACE CRC-32 checksum.
+        /// ACE CRC-32 uses standard CRC-32 polynomial (0xEDB88320, reflected)
+        /// with init=0xFFFFFFFF but NO final XOR.
+        /// </summary>
+        public static uint AceCrc32(ReadOnlySpan<byte> data)
+        {
+            uint crc = 0xFFFFFFFFu;
+
+            foreach (byte b in data)
+            {
+                crc = (crc >> 8) ^ Crc32Table[(crc ^ b) & 0xFF];
+            }
+
+            return crc; // No final XOR for ACE
+        }
+
+        /// <summary>
+        /// ACE CRC-16 is the lower 16 bits of the ACE CRC-32.
+        /// </summary>
+        public static ushort AceCrc16(ReadOnlySpan<byte> data)
+        {
+            return (ushort)(AceCrc32(data) & 0xFFFF);
+        }
+    }
+}

src/SharpCompress/Common/Ace/AceEntry.cs

@@ -0,0 +1,68 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SharpCompress.Common.Ace.Headers;
+
+namespace SharpCompress.Common.Ace
+{
+    public class AceEntry : Entry
+    {
+        private readonly AceFilePart _filePart;
+
+        internal AceEntry(AceFilePart filePart)
+        {
+            _filePart = filePart;
+        }
+
+        public override long Crc
+        {
+            get
+            {
+                if (_filePart == null)
+                {
+                    return 0;
+                }
+                return _filePart.Header.Crc32;
+            }
+        }
+
+        public override string? Key => _filePart?.Header.Filename;
+
+        public override string? LinkTarget => null;
+
+        public override long CompressedSize => _filePart?.Header.PackedSize ?? 0;
+
+        public override CompressionType CompressionType
+        {
+            get
+            {
+                if (_filePart.Header.CompressionType == Headers.CompressionType.Stored)
+                {
+                    return CompressionType.None;
+                }
+                return CompressionType.AceLZ77;
+            }
+        }
+
+        public override long Size => _filePart?.Header.OriginalSize ?? 0;
+
+        public override DateTime? LastModifiedTime => _filePart.Header.DateTime;
+
+        public override DateTime? CreatedTime => null;
+
+        public override DateTime? LastAccessedTime => null;
+
+        public override DateTime? ArchivedTime => null;
+
+        public override bool IsEncrypted => _filePart.Header.IsFileEncrypted;
+
+        public override bool IsDirectory => _filePart.Header.IsDirectory;
+
+        public override bool IsSplitAfter => false;
+
+        internal override IEnumerable<FilePart> Parts => _filePart.Empty();
+    }
+}

src/SharpCompress/Common/Ace/AceFilePart.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SharpCompress.Common.Ace.Headers;
+using SharpCompress.IO;
+
+namespace SharpCompress.Common.Ace
+{
+    public class AceFilePart : FilePart
+    {
+        private readonly Stream _stream;
+        internal AceFileHeader Header { get; set; }
+
+        internal AceFilePart(AceFileHeader localAceHeader, Stream seekableStream)
+            : base(localAceHeader.ArchiveEncoding)
+        {
+            _stream = seekableStream;
+            Header = localAceHeader;
+        }
+
+        internal override string? FilePartName => Header.Filename;
+
+        internal override Stream GetCompressedStream()
+        {
+            if (_stream != null)
+            {
+                Stream compressedStream;
+                switch (Header.CompressionType)
+                {
+                    case Headers.CompressionType.Stored:
+                        compressedStream = new ReadOnlySubStream(
+                            _stream,
+                            Header.DataStartPosition,
+                            Header.PackedSize
+                        );
+                        break;
+                    default:
+                        throw new NotSupportedException(
+                            "CompressionMethod: " + Header.CompressionQuality
+                        );
+                }
+                return compressedStream;
+            }
+            return _stream.NotNull();
+        }
+
+        internal override Stream? GetRawStream() => _stream;
+    }
+}

src/SharpCompress/Common/Ace/AceVolume.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SharpCompress.Common.Arj;
+using SharpCompress.Readers;
+
+namespace SharpCompress.Common.Ace
+{
+    public class AceVolume : Volume
+    {
+        public AceVolume(Stream stream, ReaderOptions readerOptions, int index = 0)
+            : base(stream, readerOptions, index) { }
+
+        public override bool IsFirstVolume
+        {
+            get { return true; }
+        }
+
+        /// <summary>
+        /// ArjArchive is part of a multi-part archive.
+        /// </summary>
+        public override bool IsMultiVolume
+        {
+            get { return false; }
+        }
+
+        internal IEnumerable<AceFilePart> GetVolumeFileParts()
+        {
+            return new List<AceFilePart>();
+        }
+    }
+}

src/SharpCompress/Common/Ace/Headers/AceFileHeader.cs

@@ -0,0 +1,171 @@
+using System;
+using System.Buffers.Binary;
+using System.Collections.Generic;
+using System.IO;
+using System.Xml.Linq;
+using SharpCompress.Common.Arc;
+
+namespace SharpCompress.Common.Ace.Headers
+{
+    /// <summary>
+    /// ACE file entry header
+    /// </summary>
+    public sealed class AceFileHeader : AceHeader
+    {
+        public long DataStartPosition { get; private set; }
+        public long PackedSize { get; set; }
+        public long OriginalSize { get; set; }
+        public DateTime DateTime { get; set; }
+        public int Attributes { get; set; }
+        public uint Crc32 { get; set; }
+        public CompressionType CompressionType { get; set; }
+        public CompressionQuality CompressionQuality { get; set; }
+        public ushort Parameters { get; set; }
+        public string Filename { get; set; } = string.Empty;
+        public List<byte> Comment { get; set; } = new();
+
+        /// <summary>
+        /// File data offset in the archive
+        /// </summary>
+        public ulong DataOffset { get; set; }
+
+        public bool IsDirectory => (Attributes & 0x10) != 0;
+
+        public bool IsContinuedFromPrev =>
+            (HeaderFlags & SharpCompress.Common.Ace.Headers.HeaderFlags.CONTINUED_PREV) != 0;
+
+        public bool IsContinuedToNext =>
+            (HeaderFlags & SharpCompress.Common.Ace.Headers.HeaderFlags.CONTINUED_NEXT) != 0;
+
+        public int DictionarySize
+        {
+            get
+            {
+                int bits = Parameters & 0x0F;
+                return bits < 10 ? 1024 : 1 << bits;
+            }
+        }
+
+        public AceFileHeader(ArchiveEncoding archiveEncoding)
+            : base(archiveEncoding, AceHeaderType.FILE) { }
+
+        /// <summary>
+        /// Reads the next file entry header from the stream.
+        /// Returns null if no more entries or end of archive.
+        /// Supports both ACE 1.0 and ACE 2.0 formats.
+        /// </summary>
+        public override AceHeader? Read(Stream stream)
+        {
+            var headerData = ReadHeader(stream);
+            if (headerData.Length == 0)
+            {
+                return null;
+            }
+            int offset = 0;
+
+            // Header type (1 byte)
+            HeaderType = headerData[offset++];
+
+            // Skip recovery record headers (ACE 2.0 feature)
+            if (HeaderType == (byte)SharpCompress.Common.Ace.Headers.AceHeaderType.RECOVERY32)
+            {
+                // Skip to next header
+                return null;
+            }
+
+            if (HeaderType != (byte)SharpCompress.Common.Ace.Headers.AceHeaderType.FILE)
+            {
+                // Unknown header type - skip
+                return null;
+            }
+
+            // Header flags (2 bytes)
+            HeaderFlags = BitConverter.ToUInt16(headerData, offset);
+            offset += 2;
+
+            // Packed size (4 bytes)
+            PackedSize = BitConverter.ToUInt32(headerData, offset);
+            offset += 4;
+
+            // Original size (4 bytes)
+            OriginalSize = BitConverter.ToUInt32(headerData, offset);
+            offset += 4;
+
+            // File date/time in DOS format (4 bytes)
+            var dosDateTime = BitConverter.ToUInt32(headerData, offset);
+            DateTime = ConvertDosDateTime(dosDateTime);
+            offset += 4;
+
+            // File attributes (4 bytes)
+            Attributes = (int)BitConverter.ToUInt32(headerData, offset);
+            offset += 4;
+
+            // CRC32 (4 bytes)
+            Crc32 = BitConverter.ToUInt32(headerData, offset);
+            offset += 4;
+
+            // Compression type (1 byte)
+            byte compressionType = headerData[offset++];
+            CompressionType = GetCompressionType(compressionType);
+
+            // Compression quality/parameter (1 byte)
+            byte compressionQuality = headerData[offset++];
+            CompressionQuality = GetCompressionQuality(compressionQuality);
+
+            // Parameters (2 bytes)
+            Parameters = BitConverter.ToUInt16(headerData, offset);
+            offset += 2;
+
+            // Reserved (2 bytes) - skip
+            offset += 2;
+
+            // Filename length (2 bytes)
+            var filenameLength = BitConverter.ToUInt16(headerData, offset);
+            offset += 2;
+
+            // Filename
+            if (offset + filenameLength <= headerData.Length)
+            {
+                Filename = ArchiveEncoding.Decode(headerData, offset, filenameLength);
+                offset += filenameLength;
+            }
+
+            // Handle comment if present
+            if ((HeaderFlags & SharpCompress.Common.Ace.Headers.HeaderFlags.COMMENT) != 0)
+            {
+                // Comment length (2 bytes)
+                if (offset + 2 <= headerData.Length)
+                {
+                    ushort commentLength = BitConverter.ToUInt16(headerData, offset);
+                    offset += 2 + commentLength; // Skip comment
+                }
+            }
+
+            // Store the data start position
+            DataStartPosition = stream.Position;
+
+            return this;
+        }
+
+        public CompressionType GetCompressionType(byte value) =>
+            value switch
+            {
+                0 => CompressionType.Stored,
+                1 => CompressionType.Lz77,
+                2 => CompressionType.Blocked,
+                _ => CompressionType.Unknown,
+            };
+
+        public CompressionQuality GetCompressionQuality(byte value) =>
+            value switch
+            {
+                0 => CompressionQuality.None,
+                1 => CompressionQuality.Fastest,
+                2 => CompressionQuality.Fast,
+                3 => CompressionQuality.Normal,
+                4 => CompressionQuality.Good,
+                5 => CompressionQuality.Best,
+                _ => CompressionQuality.Unknown,
+            };
+    }
+}

src/SharpCompress/Common/Ace/Headers/AceHeader.cs

@@ -0,0 +1,153 @@
+using System;
+using System.IO;
+using SharpCompress.Common.Arj.Headers;
+using SharpCompress.Crypto;
+
+namespace SharpCompress.Common.Ace.Headers
+{
+    /// <summary>
+    /// Header type constants
+    /// </summary>
+    public enum AceHeaderType
+    {
+        MAIN = 0,
+        FILE = 1,
+        RECOVERY32 = 2,
+        RECOVERY64A = 3,
+        RECOVERY64B = 4,
+    }
+
+    public abstract class AceHeader
+    {
+        // ACE signature: bytes at offset 7 should be "**ACE**"
+        private static readonly byte[] AceSignature =
+        [
+            (byte)'*',
+            (byte)'*',
+            (byte)'A',
+            (byte)'C',
+            (byte)'E',
+            (byte)'*',
+            (byte)'*',
+        ];
+
+        public AceHeader(ArchiveEncoding archiveEncoding, AceHeaderType type)
+        {
+            AceHeaderType = type;
+            ArchiveEncoding = archiveEncoding;
+        }
+
+        public ArchiveEncoding ArchiveEncoding { get; }
+        public AceHeaderType AceHeaderType { get; }
+
+        public ushort HeaderFlags { get; set; }
+        public ushort HeaderCrc { get; set; }
+        public ushort HeaderSize { get; set; }
+        public byte HeaderType { get; set; }
+
+        public bool IsFileEncrypted =>
+            (HeaderFlags & SharpCompress.Common.Ace.Headers.HeaderFlags.FILE_ENCRYPTED) != 0;
+        public bool Is64Bit =>
+            (HeaderFlags & SharpCompress.Common.Ace.Headers.HeaderFlags.MEMORY_64BIT) != 0;
+
+        public bool IsSolid =>
+            (HeaderFlags & SharpCompress.Common.Ace.Headers.HeaderFlags.SOLID_MAIN) != 0;
+
+        public bool IsMultiVolume =>
+            (HeaderFlags & SharpCompress.Common.Ace.Headers.HeaderFlags.MULTIVOLUME) != 0;
+
+        public abstract AceHeader? Read(Stream reader);
+
+        public byte[] ReadHeader(Stream stream)
+        {
+            // Read header CRC (2 bytes) and header size (2 bytes)
+            var headerBytes = new byte[4];
+            if (stream.Read(headerBytes, 0, 4) != 4)
+            {
+                return Array.Empty<byte>();
+            }
+
+            HeaderCrc = BitConverter.ToUInt16(headerBytes, 0); // CRC for validation
+            HeaderSize = BitConverter.ToUInt16(headerBytes, 2);
+            if (HeaderSize == 0)
+            {
+                return Array.Empty<byte>();
+            }
+
+            // Read the header data
+            var body = new byte[HeaderSize];
+            if (stream.Read(body, 0, HeaderSize) != HeaderSize)
+            {
+                return Array.Empty<byte>();
+            }
+
+            // Verify crc
+            var checksum = AceCrc.AceCrc16(body);
+            if (checksum != HeaderCrc)
+            {
+                throw new InvalidDataException("Header checksum is invalid");
+            }
+            return body;
+        }
+
+        public static bool IsArchive(Stream stream)
+        {
+            // ACE files have a specific signature
+            // First two bytes are typically 0x60 0xEA (signature bytes)
+            // At offset 7, there should be "**ACE**" (7 bytes)
+            var bytes = new byte[14];
+            if (stream.Read(bytes, 0, 14) != 14)
+            {
+                return false;
+            }
+
+            // Check for "**ACE**" at offset 7
+            return CheckMagicBytes(bytes, 7);
+        }
+
+        protected static bool CheckMagicBytes(byte[] headerBytes, int offset)
+        {
+            // Check for "**ACE**" at specified offset
+            for (int i = 0; i < AceSignature.Length; i++)
+            {
+                if (headerBytes[offset + i] != AceSignature[i])
+                {
+                    return false;
+                }
+            }
+            return true;
+        }
+
+        protected DateTime ConvertDosDateTime(uint dosDateTime)
+        {
+            try
+            {
+                int second = (int)(dosDateTime & 0x1F) * 2;
+                int minute = (int)((dosDateTime >> 5) & 0x3F);
+                int hour = (int)((dosDateTime >> 11) & 0x1F);
+                int day = (int)((dosDateTime >> 16) & 0x1F);
+                int month = (int)((dosDateTime >> 21) & 0x0F);
+                int year = (int)((dosDateTime >> 25) & 0x7F) + 1980;
+
+                if (
+                    day < 1
+                    || day > 31
+                    || month < 1
+                    || month > 12
+                    || hour > 23
+                    || minute > 59
+                    || second > 59
+                )
+                {
+                    return DateTime.MinValue;
+                }
+
+                return new DateTime(year, month, day, hour, minute, second);
+            }
+            catch
+            {
+                return DateTime.MinValue;
+            }
+        }
+    }
+}

src/SharpCompress/Common/Ace/Headers/AceMainHeader.cs

@@ -0,0 +1,97 @@
+using System;
+using System.Buffers.Binary;
+using System.Collections.Generic;
+using System.IO;
+using SharpCompress.Common.Ace.Headers;
+using SharpCompress.Common.Zip.Headers;
+using SharpCompress.Crypto;
+
+namespace SharpCompress.Common.Ace.Headers
+{
+    /// <summary>
+    /// ACE main archive header
+    /// </summary>
+    public sealed class AceMainHeader : AceHeader
+    {
+        public byte ExtractVersion { get; set; }
+        public byte CreatorVersion { get; set; }
+        public HostOS HostOS { get; set; }
+        public byte VolumeNumber { get; set; }
+        public DateTime DateTime { get; set; }
+        public string Advert { get; set; } = string.Empty;
+        public List<byte> Comment { get; set; } = new();
+        public byte AceVersion { get; private set; }
+
+        public AceMainHeader(ArchiveEncoding archiveEncoding)
+            : base(archiveEncoding, AceHeaderType.MAIN) { }
+
+        /// <summary>
+        /// Reads the main archive header from the stream.
+        /// Returns header if this is a valid ACE archive.
+        /// Supports both ACE 1.0 and ACE 2.0 formats.
+        /// </summary>
+        public override AceHeader? Read(Stream stream)
+        {
+            var headerData = ReadHeader(stream);
+            if (headerData.Length == 0)
+            {
+                return null;
+            }
+            int offset = 0;
+
+            // Header type should be 0 for main header
+            if (headerData[offset++] != HeaderType)
+            {
+                return null;
+            }
+
+            // Header flags (2 bytes)
+            HeaderFlags = BitConverter.ToUInt16(headerData, offset);
+            offset += 2;
+
+            // Skip signature "**ACE**" (7 bytes)
+            if (!CheckMagicBytes(headerData, offset))
+            {
+                throw new InvalidDataException("Invalid ACE archive signature.");
+            }
+            offset += 7;
+
+            // ACE version (1 byte) - 10 for ACE 1.0, 20 for ACE 2.0
+            AceVersion = headerData[offset++];
+            ExtractVersion = headerData[offset++];
+
+            // Host OS (1 byte)
+            if (offset < headerData.Length)
+            {
+                var hostOsByte = headerData[offset++];
+                HostOS = hostOsByte <= 11 ? (HostOS)hostOsByte : HostOS.Unknown;
+            }
+            // Volume number (1 byte)
+            VolumeNumber = headerData[offset++];
+
+            // Creation date/time (4 bytes)
+            var dosDateTime = BitConverter.ToUInt32(headerData, offset);
+            DateTime = ConvertDosDateTime(dosDateTime);
+            offset += 4;
+
+            // Reserved fields (8 bytes)
+            if (offset + 8 <= headerData.Length)
+            {
+                offset += 8;
+            }
+
+            // Skip additional fields based on flags
+            // Handle comment if present
+            if ((HeaderFlags & SharpCompress.Common.Ace.Headers.HeaderFlags.COMMENT) != 0)
+            {
+                if (offset + 2 <= headerData.Length)
+                {
+                    ushort commentLength = BitConverter.ToUInt16(headerData, offset);
+                    offset += 2 + commentLength;
+                }
+            }
+
+            return this;
+        }
+    }
+}

src/SharpCompress/Common/Ace/Headers/CompressionQuality.cs

@@ -0,0 +1,16 @@
+namespace SharpCompress.Common.Ace.Headers
+{
+    /// <summary>
+    /// Compression quality
+    /// </summary>
+    public enum CompressionQuality
+    {
+        None,
+        Fastest,
+        Fast,
+        Normal,
+        Good,
+        Best,
+        Unknown,
+    }
+}

src/SharpCompress/Common/Ace/Headers/CompressionType.cs

@@ -0,0 +1,13 @@
+namespace SharpCompress.Common.Ace.Headers
+{
+    /// <summary>
+    /// Compression types
+    /// </summary>
+    public enum CompressionType
+    {
+        Stored,
+        Lz77,
+        Blocked,
+        Unknown,
+    }
+}

src/SharpCompress/Common/Ace/Headers/HeaderFlags.cs

@@ -0,0 +1,33 @@
+namespace SharpCompress.Common.Ace.Headers
+{
+    /// <summary>
+    /// Header flags (main + file, overlapping meanings)
+    /// </summary>
+    public static class HeaderFlags
+    {
+        // Shared / low bits
+        public const ushort ADDSIZE = 0x0001; // extra size field present
+        public const ushort COMMENT = 0x0002; // comment present
+        public const ushort MEMORY_64BIT = 0x0004;
+        public const ushort AV_STRING = 0x0008; // AV string present
+        public const ushort SOLID = 0x0010; // solid file
+        public const ushort LOCKED = 0x0020;
+        public const ushort PROTECTED = 0x0040;
+
+        // Main header specific
+        public const ushort V20FORMAT = 0x0100;
+        public const ushort SFX = 0x0200;
+        public const ushort LIMITSFXJR = 0x0400;
+        public const ushort MULTIVOLUME = 0x0800;
+        public const ushort ADVERT = 0x1000;
+        public const ushort RECOVERY = 0x2000;
+        public const ushort LOCKED_MAIN = 0x4000;
+        public const ushort SOLID_MAIN = 0x8000;
+
+        // File header specific (same bits, different meaning)
+        public const ushort NTSECURITY = 0x0400;
+        public const ushort CONTINUED_PREV = 0x1000;
+        public const ushort CONTINUED_NEXT = 0x2000;
+        public const ushort FILE_ENCRYPTED = 0x4000; // file encrypted (file header)
+    }
+}

src/SharpCompress/Common/Ace/Headers/HostOS.cs

@@ -0,0 +1,22 @@
+namespace SharpCompress.Common.Ace.Headers
+{
+    /// <summary>
+    /// Host OS type
+    /// </summary>
+    public enum HostOS
+    {
+        MsDos = 0,
+        Os2,
+        Windows,
+        Unix,
+        MacOs,
+        WinNt,
+        Primos,
+        AppleGs,
+        Atari,
+        Vax,
+        Amiga,
+        Next,
+        Unknown,
+    }
+}

src/SharpCompress/Common/ArchiveType.cs

@@ -9,4 +9,5 @@ public enum ArchiveType
     GZip,
     Arc,
     Arj,
+    Ace,
 }

src/SharpCompress/Common/Arj/Headers/ArjHeader.cs

@@ -34,14 +34,13 @@ namespace SharpCompress.Common.Arj.Headers
         public byte[] ReadHeader(Stream stream)
         {
             // check for magic bytes
-            Span<byte> magic = stackalloc byte[2];
+            var magic = new byte[2];
             if (stream.Read(magic) != 2)
             {
                 return Array.Empty<byte>();
             }
 
-            var magicValue = (ushort)(magic[0] | magic[1] << 8);
-            if (magicValue != ARJ_MAGIC)
+            if (!CheckMagicBytes(magic))
             {
                 throw new InvalidDataException("Not an ARJ file (wrong magic bytes)");
             }
@@ -138,5 +137,22 @@ namespace SharpCompress.Common.Arj.Headers
                 ? (FileType)value
                 : Headers.FileType.Unknown;
         }
+
+        public static bool IsArchive(Stream stream)
+        {
+            var bytes = new byte[2];
+            if (stream.Read(bytes, 0, 2) != 2)
+            {
+                return false;
+            }
+
+            return CheckMagicBytes(bytes);
+        }
+
+        protected static bool CheckMagicBytes(byte[] headerBytes)
+        {
+            var magicValue = (ushort)(headerBytes[0] | headerBytes[1] << 8);
+            return magicValue == ARJ_MAGIC;
+        }
     }
 }

src/SharpCompress/Common/CompressionType.cs

@@ -30,4 +30,5 @@ public enum CompressionType
     Distilled,
     ZStandard,
     ArjLZ77,
+    AceLZ77,
 }

src/SharpCompress/Common/Constants.cs

@@ -0,0 +1,10 @@
+namespace SharpCompress.Common;
+
+public static class Constants
+{
+    /// <summary>
+    /// The default buffer size for stream operations, matching .NET's Stream.CopyTo default of 81920 bytes.
+    /// This can be modified globally at runtime.
+    /// </summary>
+    public static int BufferSize { get; set; } = 81920;
+}

src/SharpCompress/Common/SevenZip/SevenZipFilePart.cs

@@ -55,7 +55,7 @@ internal class SevenZipFilePart : FilePart
         {
             folderStream.Skip(skipSize);
         }
-        return new ReadOnlySubStream(folderStream, Header.Size);
+        return new ReadOnlySubStream(folderStream, Header.Size, leaveOpen: false);
     }
 
     public CompressionType CompressionType

src/SharpCompress/Common/Zip/WinzipAesEncryptionData.cs

@@ -20,7 +20,7 @@ internal class WinzipAesEncryptionData
     {
         _keySize = keySize;
 
-#if NETFRAMEWORK
+#if NETFRAMEWORK || NETSTANDARD2_0
         var rfc2898 = new Rfc2898DeriveBytes(password, salt, RFC2898_ITERATIONS);
         KeyBytes = rfc2898.GetBytes(KeySizeInBytes);
         IvBytes = rfc2898.GetBytes(KeySizeInBytes);

src/SharpCompress/Compressors/BZip2/BZip2Stream.cs

@@ -30,6 +30,7 @@ public sealed class BZip2Stream : Stream, IStreamStack
 
     private readonly Stream stream;
     private bool isDisposed;
+    private readonly bool leaveOpen;
 
     /// <summary>
     /// Create a BZip2Stream
@@ -37,19 +38,30 @@ public sealed class BZip2Stream : Stream, IStreamStack
     /// <param name="stream">The stream to read from</param>
     /// <param name="compressionMode">Compression Mode</param>
     /// <param name="decompressConcatenated">Decompress Concatenated</param>
-    public BZip2Stream(Stream stream, CompressionMode compressionMode, bool decompressConcatenated)
+    /// <param name="leaveOpen">Leave the stream open after disposing</param>
+    public BZip2Stream(
+        Stream stream,
+        CompressionMode compressionMode,
+        bool decompressConcatenated,
+        bool leaveOpen = false
+    )
     {
 #if DEBUG_STREAMS
         this.DebugConstruct(typeof(BZip2Stream));
 #endif
+        this.leaveOpen = leaveOpen;
         Mode = compressionMode;
         if (Mode == CompressionMode.Compress)
         {
-            this.stream = new CBZip2OutputStream(stream);
+            this.stream = new CBZip2OutputStream(stream, 9, leaveOpen);
         }
         else
         {
-            this.stream = new CBZip2InputStream(stream, decompressConcatenated);
+            this.stream = new CBZip2InputStream(
+                stream,
+                decompressConcatenated,
+                leaveOpen: leaveOpen
+            );
         }
     }
 

src/SharpCompress/Compressors/BZip2/CBZip2InputStream.cs

@@ -168,6 +168,7 @@ internal class CBZip2InputStream : Stream, IStreamStack
     private int computedBlockCRC,
         computedCombinedCRC;
     private readonly bool decompressConcatenated;
+    private readonly bool leaveOpen;
 
     private int i2,
         count,
@@ -181,9 +182,10 @@ internal class CBZip2InputStream : Stream, IStreamStack
     private char z;
     private bool isDisposed;
 
-    public CBZip2InputStream(Stream zStream, bool decompressConcatenated)
+    public CBZip2InputStream(Stream zStream, bool decompressConcatenated, bool leaveOpen = false)
     {
         this.decompressConcatenated = decompressConcatenated;
+        this.leaveOpen = leaveOpen;
         ll8 = null;
         tt = null;
         BsSetStream(zStream);
@@ -207,7 +209,10 @@ internal class CBZip2InputStream : Stream, IStreamStack
         this.DebugDispose(typeof(CBZip2InputStream));
 #endif
         base.Dispose(disposing);
-        bsStream?.Dispose();
+        if (!leaveOpen)
+        {
+            bsStream?.Dispose();
+        }
     }
 
     internal static int[][] InitIntArray(int n1, int n2)
@@ -398,7 +403,10 @@ internal class CBZip2InputStream : Stream, IStreamStack
 
     private void BsFinishedWithStream()
     {
-        bsStream?.Dispose();
+        if (!leaveOpen)
+        {
+            bsStream?.Dispose();
+        }
         bsStream = null;
     }
 

src/SharpCompress/Compressors/BZip2/CBZip2OutputStream.cs

@@ -341,12 +341,14 @@ internal sealed class CBZip2OutputStream : Stream, IStreamStack
 
     private int currentChar = -1;
     private int runLength;
+    private readonly bool leaveOpen;
 
-    public CBZip2OutputStream(Stream inStream)
-        : this(inStream, 9) { }
+    public CBZip2OutputStream(Stream inStream, bool leaveOpen = false)
+        : this(inStream, 9, leaveOpen) { }
 
-    public CBZip2OutputStream(Stream inStream, int inBlockSize)
+    public CBZip2OutputStream(Stream inStream, int inBlockSize, bool leaveOpen = false)
     {
+        this.leaveOpen = leaveOpen;
         block = null;
         quadrant = null;
         zptr = null;
@@ -481,7 +483,10 @@ internal sealed class CBZip2OutputStream : Stream, IStreamStack
             this.DebugDispose(typeof(CBZip2OutputStream));
 #endif
             Dispose();
-            bsStream?.Dispose();
+            if (!leaveOpen)
+            {
+                bsStream?.Dispose();
+            }
             bsStream = null;
         }
     }

src/SharpCompress/Compressors/Deflate/ZlibBaseStream.cs

@@ -586,7 +586,13 @@ internal class ZlibBaseStream : Stream, IStreamStack
 
     public override void Flush()
     {
-        _stream.Flush();
+        // Only flush the underlying stream when in write mode
+        // Flushing input streams during read operations is not meaningful
+        // and can cause issues with forward-only/non-seekable streams
+        if (_streamMode == StreamMode.Writer)
+        {
+            _stream.Flush();
+        }
         //rewind the buffer
         ((IStreamStack)this).Rewind(z.AvailableBytesIn); //unused
         z.AvailableBytesIn = 0;
@@ -594,7 +600,13 @@ internal class ZlibBaseStream : Stream, IStreamStack
 
     public override async Task FlushAsync(CancellationToken cancellationToken)
     {
-        await _stream.FlushAsync(cancellationToken).ConfigureAwait(false);
+        // Only flush the underlying stream when in write mode
+        // Flushing input streams during read operations is not meaningful
+        // and can cause issues with forward-only/non-seekable streams
+        if (_streamMode == StreamMode.Writer)
+        {
+            await _stream.FlushAsync(cancellationToken).ConfigureAwait(false);
+        }
         //rewind the buffer
         ((IStreamStack)this).Rewind(z.AvailableBytesIn); //unused
         z.AvailableBytesIn = 0;

src/SharpCompress/Compressors/LZMA/LZ/LzOutWindow.cs

@@ -153,7 +153,7 @@ internal class OutWindow : IDisposable
         _pendingLen = rem;
     }
 
-    public async Task CopyPendingAsync(CancellationToken cancellationToken = default)
+    public async ValueTask CopyPendingAsync(CancellationToken cancellationToken = default)
     {
         if (_pendingLen < 1)
         {
@@ -206,7 +206,7 @@ internal class OutWindow : IDisposable
         _pendingDist = distance;
     }
 
-    public async Task CopyBlockAsync(
+    public async ValueTask CopyBlockAsync(
         int distance,
         int len,
         CancellationToken cancellationToken = default
@@ -253,7 +253,7 @@ internal class OutWindow : IDisposable
         }
     }
 
-    public async Task PutByteAsync(byte b, CancellationToken cancellationToken = default)
+    public async ValueTask PutByteAsync(byte b, CancellationToken cancellationToken = default)
     {
         _buffer[_pos++] = b;
         _total++;
@@ -369,6 +369,28 @@ internal class OutWindow : IDisposable
         return size;
     }
 
+    public int Read(Memory<byte> buffer, int offset, int count)
+    {
+        if (_streamPos >= _pos)
+        {
+            return 0;
+        }
+
+        var size = _pos - _streamPos;
+        if (size > count)
+        {
+            size = count;
+        }
+        _buffer.AsMemory(_streamPos, size).CopyTo(buffer.Slice(offset, size));
+        _streamPos += size;
+        if (_streamPos >= _windowSize)
+        {
+            _pos = 0;
+            _streamPos = 0;
+        }
+        return size;
+    }
+
     public int ReadByte()
     {
         if (_streamPos >= _pos)

src/SharpCompress/Compressors/LZMA/LZipStream.cs

@@ -45,10 +45,14 @@ public sealed class LZipStream : Stream, IStreamStack
     private bool _finished;
 
     private long _writeCount;
+    private readonly Stream? _originalStream;
+    private readonly bool _leaveOpen;
 
-    public LZipStream(Stream stream, CompressionMode mode)
+    public LZipStream(Stream stream, CompressionMode mode, bool leaveOpen = false)
     {
         Mode = mode;
+        _originalStream = stream;
+        _leaveOpen = leaveOpen;
 
         if (mode == CompressionMode.Decompress)
         {
@@ -58,7 +62,7 @@ public sealed class LZipStream : Stream, IStreamStack
                 throw new InvalidFormatException("Not an LZip stream");
             }
             var properties = GetProperties(dSize);
-            _stream = new LzmaStream(properties, stream);
+            _stream = new LzmaStream(properties, stream, leaveOpen: leaveOpen);
         }
         else
         {
@@ -125,6 +129,10 @@ public sealed class LZipStream : Stream, IStreamStack
         {
             Finish();
             _stream.Dispose();
+            if (Mode == CompressionMode.Compress && !_leaveOpen)
+            {
+                _originalStream?.Dispose();
+            }
         }
     }
 

src/SharpCompress/Compressors/LZMA/LzmaDecoder.cs

@@ -3,6 +3,7 @@
 using System;
 using System.Diagnostics.CodeAnalysis;
 using System.IO;
+using System.Threading.Tasks;
 using SharpCompress.Compressors.LZMA.LZ;
 using SharpCompress.Compressors.LZMA.RangeCoder;
 
@@ -475,7 +476,7 @@ public class Decoder : ICoder, ISetDecoderProperties // ,System.IO.Stream
         return false;
     }
 
-    internal async System.Threading.Tasks.Task<bool> CodeAsync(
+    internal async ValueTask<bool> CodeAsync(
         int dictionarySize,
         OutWindow outWindow,
         RangeCoder.Decoder rangeDecoder,

src/SharpCompress/Compressors/LZMA/LzmaStream.cs

@@ -35,6 +35,23 @@ public class LzmaStream : Stream, IStreamStack
     private readonly Stream _inputStream;
     private readonly long _inputSize;
     private readonly long _outputSize;
+    private readonly bool _leaveOpen;
+
+    // Maximum dictionary size to prevent OutOfMemoryException: 512MB
+    // This is a reasonable limit that balances memory usage with decompression capabilities.
+    // The LZMA spec allows up to 4GB, but such large dictionaries are rarely necessary and
+    // can cause OutOfMemoryException in memory-constrained environments (e.g., containers).
+    //
+    // Most 7z archives use much smaller dictionary sizes:
+    // - Default: 32MB for solid archives, 1MB for non-solid
+    // - Common maximum: 64-128MB
+    // - Archives requiring >512MB dictionary are extremely rare
+    //
+    // If you encounter this limit with a legitimate archive, consider:
+    // - Recreating the archive with a smaller dictionary size (if you control creation)
+    // - Increasing available memory for the application
+    // - Filing an issue to request a configurable limit option
+    private const int MaxDictionarySize = 512 * 1024 * 1024; // 512MB
 
     private readonly int _dictionarySize;
     private readonly OutWindow _outWindow = new();
@@ -56,14 +73,49 @@ public class LzmaStream : Stream, IStreamStack
     private readonly Encoder _encoder;
     private bool _isDisposed;
 
-    public LzmaStream(byte[] properties, Stream inputStream)
-        : this(properties, inputStream, -1, -1, null, properties.Length < 5) { }
+    private static void ValidateDictionarySize(int dictionarySize)
+    {
+        // Validate dictionary size
+        if (dictionarySize < 0)
+        {
+            throw new InvalidOperationException(
+                $"Invalid dictionary size ({dictionarySize}). The archive may be corrupted or use an unsupported format."
+            );
+        }
 
-    public LzmaStream(byte[] properties, Stream inputStream, long inputSize)
-        : this(properties, inputStream, inputSize, -1, null, properties.Length < 5) { }
+        // Cap dictionary size to prevent OutOfMemoryException
+        if (dictionarySize > MaxDictionarySize)
+        {
+            throw new InvalidOperationException(
+                $"Dictionary size ({dictionarySize} bytes, {dictionarySize / (1024.0 * 1024.0):F2} MB) exceeds maximum allowed size ({MaxDictionarySize} bytes, {MaxDictionarySize / (1024.0 * 1024.0):F2} MB). "
+                    + "This archive may have been created with an extremely large dictionary size setting. "
+                    + "Consider recreating the archive with a smaller dictionary size."
+            );
+        }
+    }
 
-    public LzmaStream(byte[] properties, Stream inputStream, long inputSize, long outputSize)
-        : this(properties, inputStream, inputSize, outputSize, null, properties.Length < 5) { }
+    public LzmaStream(byte[] properties, Stream inputStream, bool leaveOpen = false)
+        : this(properties, inputStream, -1, -1, null, properties.Length < 5, leaveOpen) { }
+
+    public LzmaStream(byte[] properties, Stream inputStream, long inputSize, bool leaveOpen = false)
+        : this(properties, inputStream, inputSize, -1, null, properties.Length < 5, leaveOpen) { }
+
+    public LzmaStream(
+        byte[] properties,
+        Stream inputStream,
+        long inputSize,
+        long outputSize,
+        bool leaveOpen = false
+    )
+        : this(
+            properties,
+            inputStream,
+            inputSize,
+            outputSize,
+            null,
+            properties.Length < 5,
+            leaveOpen
+        ) { }
 
     public LzmaStream(
         byte[] properties,
@@ -71,13 +123,15 @@ public class LzmaStream : Stream, IStreamStack
         long inputSize,
         long outputSize,
         Stream presetDictionary,
-        bool isLzma2
+        bool isLzma2,
+        bool leaveOpen = false
     )
     {
         _inputStream = inputStream;
         _inputSize = inputSize;
         _outputSize = outputSize;
         _isLzma2 = isLzma2;
+        _leaveOpen = leaveOpen;
 
 #if DEBUG_STREAMS
         this.DebugConstruct(typeof(LzmaStream));
@@ -86,6 +140,8 @@ public class LzmaStream : Stream, IStreamStack
         if (!isLzma2)
         {
             _dictionarySize = BinaryPrimitives.ReadInt32LittleEndian(properties.AsSpan(1));
+            ValidateDictionarySize(_dictionarySize);
+
             _outWindow.Create(_dictionarySize);
             if (presetDictionary != null)
             {
@@ -105,6 +161,7 @@ public class LzmaStream : Stream, IStreamStack
         {
             _dictionarySize = 2 | (properties[0] & 1);
             _dictionarySize <<= (properties[0] >> 1) + 11;
+            ValidateDictionarySize(_dictionarySize);
 
             _outWindow.Create(_dictionarySize);
             if (presetDictionary != null)
@@ -179,7 +236,10 @@ public class LzmaStream : Stream, IStreamStack
             {
                 _position = _encoder.Code(null, true);
             }
-            _inputStream?.Dispose();
+            if (!_leaveOpen)
+            {
+                _inputStream?.Dispose();
+            }
             _outWindow.Dispose();
         }
         base.Dispose(disposing);
@@ -425,7 +485,7 @@ public class LzmaStream : Stream, IStreamStack
         }
     }
 
-    private async Task DecodeChunkHeaderAsync(CancellationToken cancellationToken = default)
+    private async ValueTask DecodeChunkHeaderAsync(CancellationToken cancellationToken = default)
     {
         var controlBuffer = new byte[1];
         await _inputStream
@@ -632,6 +692,119 @@ public class LzmaStream : Stream, IStreamStack
         return total;
     }
 
+#if !NETFRAMEWORK && !NETSTANDARD2_0
+    public override async ValueTask<int> ReadAsync(
+        Memory<byte> buffer,
+        CancellationToken cancellationToken = default
+    )
+    {
+        if (_endReached)
+        {
+            return 0;
+        }
+
+        var total = 0;
+        var offset = 0;
+        var count = buffer.Length;
+        while (total < count)
+        {
+            cancellationToken.ThrowIfCancellationRequested();
+
+            if (_availableBytes == 0)
+            {
+                if (_isLzma2)
+                {
+                    await DecodeChunkHeaderAsync(cancellationToken).ConfigureAwait(false);
+                }
+                else
+                {
+                    _endReached = true;
+                }
+                if (_endReached)
+                {
+                    break;
+                }
+            }
+
+            var toProcess = count - total;
+            if (toProcess > _availableBytes)
+            {
+                toProcess = (int)_availableBytes;
+            }
+
+            _outWindow.SetLimit(toProcess);
+            if (_uncompressedChunk)
+            {
+                _inputPosition += await _outWindow
+                    .CopyStreamAsync(_inputStream, toProcess, cancellationToken)
+                    .ConfigureAwait(false);
+            }
+            else if (
+                await _decoder
+                    .CodeAsync(_dictionarySize, _outWindow, _rangeDecoder, cancellationToken)
+                    .ConfigureAwait(false)
+                && _outputSize < 0
+            )
+            {
+                _availableBytes = _outWindow.AvailableBytes;
+            }
+
+            var read = _outWindow.Read(buffer, offset, toProcess);
+            total += read;
+            offset += read;
+            _position += read;
+            _availableBytes -= read;
+
+            if (_availableBytes == 0 && !_uncompressedChunk)
+            {
+                if (
+                    !_rangeDecoder.IsFinished
+                    || (_rangeDecoderLimit >= 0 && _rangeDecoder._total != _rangeDecoderLimit)
+                )
+                {
+                    _outWindow.SetLimit(toProcess + 1);
+                    if (
+                        !await _decoder
+                            .CodeAsync(
+                                _dictionarySize,
+                                _outWindow,
+                                _rangeDecoder,
+                                cancellationToken
+                            )
+                            .ConfigureAwait(false)
+                    )
+                    {
+                        _rangeDecoder.ReleaseStream();
+                        throw new DataErrorException();
+                    }
+                }
+
+                _rangeDecoder.ReleaseStream();
+
+                _inputPosition += _rangeDecoder._total;
+                if (_outWindow.HasPending)
+                {
+                    throw new DataErrorException();
+                }
+            }
+        }
+
+        if (_endReached)
+        {
+            if (_inputSize >= 0 && _inputPosition != _inputSize)
+            {
+                throw new DataErrorException();
+            }
+            if (_outputSize >= 0 && _position != _outputSize)
+            {
+                throw new DataErrorException();
+            }
+        }
+
+        return total;
+    }
+#endif
+
     public override Task WriteAsync(
         byte[] buffer,
         int offset,

src/SharpCompress/Compressors/Rar/RarStream.cs

@@ -134,7 +134,7 @@ internal class RarStream : Stream, IStreamStack
             fetch = false;
         }
         _position += outTotal;
-        if (count > 0 && outTotal == 0 && _position != Length)
+        if (count > 0 && outTotal == 0 && _position < Length)
         {
             // sanity check, eg if we try to decompress a redir entry
             throw new InvalidOperationException(
@@ -179,7 +179,7 @@ internal class RarStream : Stream, IStreamStack
             fetch = false;
         }
         _position += outTotal;
-        if (count > 0 && outTotal == 0 && _position != Length)
+        if (count > 0 && outTotal == 0 && _position < Length)
         {
             // sanity check, eg if we try to decompress a redir entry
             throw new InvalidOperationException(

src/SharpCompress/Factories/AceFactory.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SharpCompress.Common;
+using SharpCompress.Common.Ace.Headers;
+using SharpCompress.Readers;
+using SharpCompress.Readers.Ace;
+
+namespace SharpCompress.Factories
+{
+    public class AceFactory : Factory, IReaderFactory
+    {
+        public override string Name => "Ace";
+
+        public override ArchiveType? KnownArchiveType => ArchiveType.Ace;
+
+        public override IEnumerable<string> GetSupportedExtensions()
+        {
+            yield return "ace";
+        }
+
+        public override bool IsArchive(Stream stream, string? password = null)
+        {
+            return AceHeader.IsArchive(stream);
+        }
+
+        public IReader OpenReader(Stream stream, ReaderOptions? options) =>
+            AceReader.Open(stream, options);
+    }
+}

src/SharpCompress/Factories/ArcFactory.cs

@@ -23,11 +23,7 @@ namespace SharpCompress.Factories
             yield return "arc";
         }
 
-        public override bool IsArchive(
-            Stream stream,
-            string? password = null,
-            int bufferSize = ReaderOptions.DefaultBufferSize
-        )
+        public override bool IsArchive(Stream stream, string? password = null)
         {
             //You may have to use some(paranoid) checks to ensure that you actually are
             //processing an ARC file, since other archivers also adopted the idea of putting

src/SharpCompress/Factories/ArjFactory.cs

@@ -22,18 +22,9 @@ namespace SharpCompress.Factories
             yield return "arj";
         }
 
-        public override bool IsArchive(
-            Stream stream,
-            string? password = null,
-            int bufferSize = ReaderOptions.DefaultBufferSize
-        )
+        public override bool IsArchive(Stream stream, string? password = null)
         {
-            var arjHeader = new ArjMainHeader(new ArchiveEncoding());
-            if (arjHeader.Read(stream) == null)
-            {
-                return false;
-            }
-            return true;
+            return ArjHeader.IsArchive(stream);
         }
 
         public IReader OpenReader(Stream stream, ReaderOptions? options) =>

src/SharpCompress/Factories/Factory.cs

@@ -19,6 +19,7 @@ public abstract class Factory : IFactory
         RegisterFactory(new TarFactory());
         RegisterFactory(new ArcFactory());
         RegisterFactory(new ArjFactory());
+        RegisterFactory(new AceFactory());
     }
 
     private static readonly HashSet<Factory> _factories = new();
@@ -50,11 +51,7 @@ public abstract class Factory : IFactory
     public abstract IEnumerable<string> GetSupportedExtensions();
 
     /// <inheritdoc/>
-    public abstract bool IsArchive(
-        Stream stream,
-        string? password = null,
-        int bufferSize = ReaderOptions.DefaultBufferSize
-    );
+    public abstract bool IsArchive(Stream stream, string? password = null);
 
     /// <inheritdoc/>
     public virtual FileInfo? GetFilePart(int index, FileInfo part1) => null;
@@ -81,7 +78,7 @@ public abstract class Factory : IFactory
         {
             long pos = ((IStreamStack)stream).GetPosition();
 
-            if (IsArchive(stream, options.Password, options.BufferSize))
+            if (IsArchive(stream, options.Password))
             {
                 ((IStreamStack)stream).StackSeek(pos);
                 reader = readerFactory.OpenReader(stream, options);

src/SharpCompress/Factories/GZipFactory.cs

@@ -40,11 +40,8 @@ public class GZipFactory
     }
 
     /// <inheritdoc/>
-    public override bool IsArchive(
-        Stream stream,
-        string? password = null,
-        int bufferSize = ReaderOptions.DefaultBufferSize
-    ) => GZipArchive.IsGZipFile(stream);
+    public override bool IsArchive(Stream stream, string? password = null) =>
+        GZipArchive.IsGZipFile(stream);
 
     #endregion
 

src/SharpCompress/Factories/IFactory.cs

@@ -36,11 +36,7 @@ public interface IFactory
     /// </summary>
     /// <param name="stream">A stream, pointing to the beginning of the archive.</param>
     /// <param name="password">optional password</param>
-    bool IsArchive(
-        Stream stream,
-        string? password = null,
-        int bufferSize = ReaderOptions.DefaultBufferSize
-    );
+    bool IsArchive(Stream stream, string? password = null);
 
     /// <summary>
     /// From a passed in archive (zip, rar, 7z, 001), return all parts.

src/SharpCompress/Factories/RarFactory.cs

@@ -29,11 +29,8 @@ public class RarFactory : Factory, IArchiveFactory, IMultiArchiveFactory, IReade
     }
 
     /// <inheritdoc/>
-    public override bool IsArchive(
-        Stream stream,
-        string? password = null,
-        int bufferSize = ReaderOptions.DefaultBufferSize
-    ) => RarArchive.IsRarFile(stream);
+    public override bool IsArchive(Stream stream, string? password = null) =>
+        RarArchive.IsRarFile(stream);
 
     /// <inheritdoc/>
     public override FileInfo? GetFilePart(int index, FileInfo part1) =>

src/SharpCompress/Factories/SevenZipFactory.cs

@@ -28,11 +28,8 @@ public class SevenZipFactory : Factory, IArchiveFactory, IMultiArchiveFactory
     }
 
     /// <inheritdoc/>
-    public override bool IsArchive(
-        Stream stream,
-        string? password = null,
-        int bufferSize = ReaderOptions.DefaultBufferSize
-    ) => SevenZipArchive.IsSevenZipFile(stream);
+    public override bool IsArchive(Stream stream, string? password = null) =>
+        SevenZipArchive.IsSevenZipFile(stream);
 
     #endregion
 

src/SharpCompress/Factories/TarFactory.cs

@@ -53,11 +53,8 @@ public class TarFactory
     }
 
     /// <inheritdoc/>
-    public override bool IsArchive(
-        Stream stream,
-        string? password = null,
-        int bufferSize = ReaderOptions.DefaultBufferSize
-    ) => TarArchive.IsTarFile(stream);
+    public override bool IsArchive(Stream stream, string? password = null) =>
+        TarArchive.IsTarFile(stream);
 
     #endregion
 

src/SharpCompress/Factories/ZStandardFactory.cs

@@ -20,9 +20,6 @@ internal class ZStandardFactory : Factory
         yield return "zstd";
     }
 
-    public override bool IsArchive(
-        Stream stream,
-        string? password = null,
-        int bufferSize = 65536
-    ) => ZStandardStream.IsZStandard(stream);
+    public override bool IsArchive(Stream stream, string? password = null) =>
+        ZStandardStream.IsZStandard(stream);
 }

src/SharpCompress/Factories/ZipFactory.cs

@@ -39,11 +39,7 @@ public class ZipFactory
     }
 
     /// <inheritdoc/>
-    public override bool IsArchive(
-        Stream stream,
-        string? password = null,
-        int bufferSize = ReaderOptions.DefaultBufferSize
-    )
+    public override bool IsArchive(Stream stream, string? password = null)
     {
         var startPosition = stream.CanSeek ? stream.Position : -1;
 
@@ -51,10 +47,10 @@ public class ZipFactory
 
         if (stream is not SharpCompressStream) // wrap to provide buffer bef
         {
-            stream = new SharpCompressStream(stream, bufferSize: bufferSize);
+            stream = new SharpCompressStream(stream, bufferSize: Constants.BufferSize);
         }
 
-        if (ZipArchive.IsZipFile(stream, password, bufferSize))
+        if (ZipArchive.IsZipFile(stream, password))
         {
             return true;
         }
@@ -69,7 +65,7 @@ public class ZipFactory
         stream.Position = startPosition;
 
         //test the zip (last) file of a multipart zip
-        if (ZipArchive.IsZipMulti(stream, password, bufferSize))
+        if (ZipArchive.IsZipMulti(stream, password))
         {
             return true;
         }

src/SharpCompress/IO/BufferedSubStream.cs

@@ -1,5 +1,8 @@
 using System;
+using System.Buffers;
 using System.IO;
+using System.Threading;
+using System.Threading.Tasks;
 
 namespace SharpCompress.IO;
 
@@ -26,14 +29,25 @@ internal class BufferedSubStream : SharpCompressStream, IStreamStack
 #if DEBUG_STREAMS
         this.DebugDispose(typeof(BufferedSubStream));
 #endif
-        if (disposing) { }
+        if (_isDisposed)
+        {
+            return;
+        }
+        _isDisposed = true;
+
+        if (disposing && _cache is not null)
+        {
+            ArrayPool<byte>.Shared.Return(_cache);
+            _cache = null;
+        }
         base.Dispose(disposing);
     }
 
     private int _cacheOffset;
     private int _cacheLength;
-    private readonly byte[] _cache = new byte[32 << 10];
+    private byte[]? _cache = ArrayPool<byte>.Shared.Rent(81920);
     private long origin;
+    private bool _isDisposed;
 
     private long BytesLeftToRead { get; set; }
 
@@ -55,19 +69,58 @@ internal class BufferedSubStream : SharpCompressStream, IStreamStack
 
     private void RefillCache()
     {
-        var count = (int)Math.Min(BytesLeftToRead, _cache.Length);
+        if (_isDisposed)
+        {
+            throw new ObjectDisposedException(nameof(BufferedSubStream));
+        }
+
+        var count = (int)Math.Min(BytesLeftToRead, _cache!.Length);
         _cacheOffset = 0;
         if (count == 0)
         {
             _cacheLength = 0;
             return;
         }
-        Stream.Position = origin;
+
+        // Only seek if we're not already at the correct position
+        // This avoids expensive seek operations when reading sequentially
+        if (Stream.CanSeek && Stream.Position != origin)
+        {
+            Stream.Position = origin;
+        }
+
         _cacheLength = Stream.Read(_cache, 0, count);
         origin += _cacheLength;
         BytesLeftToRead -= _cacheLength;
     }
 
+    private async ValueTask RefillCacheAsync(CancellationToken cancellationToken)
+    {
+        if (_isDisposed)
+        {
+            throw new ObjectDisposedException(nameof(BufferedSubStream));
+        }
+
+        var count = (int)Math.Min(BytesLeftToRead, _cache!.Length);
+        _cacheOffset = 0;
+        if (count == 0)
+        {
+            _cacheLength = 0;
+            return;
+        }
+        // Only seek if we're not already at the correct position
+        // This avoids expensive seek operations when reading sequentially
+        if (Stream.CanSeek && Stream.Position != origin)
+        {
+            Stream.Position = origin;
+        }
+        _cacheLength = await Stream
+            .ReadAsync(_cache, 0, count, cancellationToken)
+            .ConfigureAwait(false);
+        origin += _cacheLength;
+        BytesLeftToRead -= _cacheLength;
+    }
+
     public override int Read(byte[] buffer, int offset, int count)
     {
         if (count > Length)
@@ -83,7 +136,7 @@ internal class BufferedSubStream : SharpCompressStream, IStreamStack
             }
 
             count = Math.Min(count, _cacheLength - _cacheOffset);
-            Buffer.BlockCopy(_cache, _cacheOffset, buffer, offset, count);
+            Buffer.BlockCopy(_cache!, _cacheOffset, buffer, offset, count);
             _cacheOffset += count;
         }
 
@@ -101,9 +154,64 @@ internal class BufferedSubStream : SharpCompressStream, IStreamStack
             }
         }
 
-        return _cache[_cacheOffset++];
+        return _cache![_cacheOffset++];
     }
 
+    public override async Task<int> ReadAsync(
+        byte[] buffer,
+        int offset,
+        int count,
+        CancellationToken cancellationToken
+    )
+    {
+        if (count > Length)
+        {
+            count = (int)Length;
+        }
+
+        if (count > 0)
+        {
+            if (_cacheOffset == _cacheLength)
+            {
+                await RefillCacheAsync(cancellationToken).ConfigureAwait(false);
+            }
+
+            count = Math.Min(count, _cacheLength - _cacheOffset);
+            Buffer.BlockCopy(_cache!, _cacheOffset, buffer, offset, count);
+            _cacheOffset += count;
+        }
+
+        return count;
+    }
+
+#if !NETFRAMEWORK && !NETSTANDARD2_0
+    public override async ValueTask<int> ReadAsync(
+        Memory<byte> buffer,
+        CancellationToken cancellationToken = default
+    )
+    {
+        var count = buffer.Length;
+        if (count > Length)
+        {
+            count = (int)Length;
+        }
+
+        if (count > 0)
+        {
+            if (_cacheOffset == _cacheLength)
+            {
+                await RefillCacheAsync(cancellationToken).ConfigureAwait(false);
+            }
+
+            count = Math.Min(count, _cacheLength - _cacheOffset);
+            _cache!.AsSpan(_cacheOffset, count).CopyTo(buffer.Span);
+            _cacheOffset += count;
+        }
+
+        return count;
+    }
+#endif
+
     public override long Seek(long offset, SeekOrigin origin) => throw new NotSupportedException();
 
     public override void SetLength(long value) => throw new NotSupportedException();

src/SharpCompress/IO/ReadOnlySubStream.cs

@@ -16,11 +16,11 @@ internal class ReadOnlySubStream : SharpCompressStream, IStreamStack
 
     private long _position;
 
-    public ReadOnlySubStream(Stream stream, long bytesToRead)
-        : this(stream, null, bytesToRead) { }
+    public ReadOnlySubStream(Stream stream, long bytesToRead, bool leaveOpen = true)
+        : this(stream, null, bytesToRead, leaveOpen) { }
 
-    public ReadOnlySubStream(Stream stream, long? origin, long bytesToRead)
-        : base(stream, leaveOpen: true, throwOnDispose: false)
+    public ReadOnlySubStream(Stream stream, long? origin, long bytesToRead, bool leaveOpen = true)
+        : base(stream, leaveOpen, throwOnDispose: false)
     {
         if (origin != null && stream.Position != origin.Value)
         {

src/SharpCompress/IO/SharpCompressStream.cs

@@ -138,8 +138,6 @@ public class SharpCompressStream : Stream, IStreamStack
 #endif
     }
 
-    internal bool IsRecording { get; private set; }
-
     protected override void Dispose(bool disposing)
     {
 #if DEBUG_STREAMS
@@ -208,11 +206,11 @@ public class SharpCompressStream : Stream, IStreamStack
         {
             ValidateBufferState();
 
-            // Fill buffer if needed
+            // Fill buffer if needed, handling short reads from underlying stream
             if (_bufferedLength == 0)
             {
-                _bufferedLength = Stream.Read(_buffer!, 0, _bufferSize);
                 _bufferPosition = 0;
+                _bufferedLength = FillBuffer(_buffer!, 0, _bufferSize);
             }
             int available = _bufferedLength - _bufferPosition;
             int toRead = Math.Min(count, available);
@@ -224,11 +222,8 @@ public class SharpCompressStream : Stream, IStreamStack
                 return toRead;
             }
             // If buffer exhausted, refill
-            int r = Stream.Read(_buffer!, 0, _bufferSize);
-            if (r == 0)
-                return 0;
-            _bufferedLength = r;
             _bufferPosition = 0;
+            _bufferedLength = FillBuffer(_buffer!, 0, _bufferSize);
             if (_bufferedLength == 0)
             {
                 return 0;
@@ -252,6 +247,31 @@ public class SharpCompressStream : Stream, IStreamStack
         }
     }
 
+    /// <summary>
+    /// Fills the buffer by reading from the underlying stream, handling short reads.
+    /// Implements the ReadFully pattern: reads in a loop until buffer is full or EOF is reached.
+    /// </summary>
+    /// <param name="buffer">Buffer to fill</param>
+    /// <param name="offset">Offset in buffer (always 0 in current usage)</param>
+    /// <param name="count">Number of bytes to read</param>
+    /// <returns>Total number of bytes read (may be less than count if EOF is reached)</returns>
+    private int FillBuffer(byte[] buffer, int offset, int count)
+    {
+        // Implement ReadFully pattern but return the actual count read
+        // This is the same logic as Utility.ReadFully but returns count instead of bool
+        var total = 0;
+        int read;
+        while ((read = Stream.Read(buffer, offset + total, count - total)) > 0)
+        {
+            total += read;
+            if (total >= count)
+            {
+                return total;
+            }
+        }
+        return total;
+    }
+
     public override long Seek(long offset, SeekOrigin origin)
     {
         if (_bufferingEnabled)
@@ -259,7 +279,6 @@ public class SharpCompressStream : Stream, IStreamStack
             ValidateBufferState();
         }
 
-        long orig = _internalPosition;
         long targetPos;
         // Calculate the absolute target position based on origin
         switch (origin)
@@ -327,13 +346,12 @@ public class SharpCompressStream : Stream, IStreamStack
         {
             ValidateBufferState();
 
-            // Fill buffer if needed
+            // Fill buffer if needed, handling short reads from underlying stream
             if (_bufferedLength == 0)
             {
-                _bufferedLength = await Stream
-                    .ReadAsync(_buffer!, 0, _bufferSize, cancellationToken)
-                    .ConfigureAwait(false);
                 _bufferPosition = 0;
+                _bufferedLength = await FillBufferAsync(_buffer!, 0, _bufferSize, cancellationToken)
+                    .ConfigureAwait(false);
             }
             int available = _bufferedLength - _bufferPosition;
             int toRead = Math.Min(count, available);
@@ -345,13 +363,9 @@ public class SharpCompressStream : Stream, IStreamStack
                 return toRead;
             }
             // If buffer exhausted, refill
-            int r = await Stream
-                .ReadAsync(_buffer!, 0, _bufferSize, cancellationToken)
-                .ConfigureAwait(false);
-            if (r == 0)
-                return 0;
-            _bufferedLength = r;
             _bufferPosition = 0;
+            _bufferedLength = await FillBufferAsync(_buffer!, 0, _bufferSize, cancellationToken)
+                .ConfigureAwait(false);
             if (_bufferedLength == 0)
             {
                 return 0;
@@ -372,6 +386,38 @@ public class SharpCompressStream : Stream, IStreamStack
         }
     }
 
+    /// <summary>
+    /// Async version of FillBuffer. Implements the ReadFullyAsync pattern.
+    /// Reads in a loop until buffer is full or EOF is reached.
+    /// </summary>
+    private async Task<int> FillBufferAsync(
+        byte[] buffer,
+        int offset,
+        int count,
+        CancellationToken cancellationToken
+    )
+    {
+        // Implement ReadFullyAsync pattern but return the actual count read
+        // This is the same logic as Utility.ReadFullyAsync but returns count instead of bool
+        var total = 0;
+        int read;
+        while (
+            (
+                read = await Stream
+                    .ReadAsync(buffer, offset + total, count - total, cancellationToken)
+                    .ConfigureAwait(false)
+            ) > 0
+        )
+        {
+            total += read;
+            if (total >= count)
+            {
+                return total;
+            }
+        }
+        return total;
+    }
+
     public override async Task WriteAsync(
         byte[] buffer,
         int offset,
@@ -402,13 +448,15 @@ public class SharpCompressStream : Stream, IStreamStack
         {
             ValidateBufferState();
 
-            // Fill buffer if needed
+            // Fill buffer if needed, handling short reads from underlying stream
             if (_bufferedLength == 0)
             {
-                _bufferedLength = await Stream
-                    .ReadAsync(_buffer.AsMemory(0, _bufferSize), cancellationToken)
-                    .ConfigureAwait(false);
                 _bufferPosition = 0;
+                _bufferedLength = await FillBufferMemoryAsync(
+                        _buffer.AsMemory(0, _bufferSize),
+                        cancellationToken
+                    )
+                    .ConfigureAwait(false);
             }
             int available = _bufferedLength - _bufferPosition;
             int toRead = Math.Min(buffer.Length, available);
@@ -420,13 +468,12 @@ public class SharpCompressStream : Stream, IStreamStack
                 return toRead;
             }
             // If buffer exhausted, refill
-            int r = await Stream
-                .ReadAsync(_buffer.AsMemory(0, _bufferSize), cancellationToken)
-                .ConfigureAwait(false);
-            if (r == 0)
-                return 0;
-            _bufferedLength = r;
             _bufferPosition = 0;
+            _bufferedLength = await FillBufferMemoryAsync(
+                    _buffer.AsMemory(0, _bufferSize),
+                    cancellationToken
+                )
+                .ConfigureAwait(false);
             if (_bufferedLength == 0)
             {
                 return 0;
@@ -445,6 +492,35 @@ public class SharpCompressStream : Stream, IStreamStack
         }
     }
 
+    /// <summary>
+    /// Async version of FillBuffer for Memory{byte}. Implements the ReadFullyAsync pattern.
+    /// Reads in a loop until buffer is full or EOF is reached.
+    /// </summary>
+    private async ValueTask<int> FillBufferMemoryAsync(
+        Memory<byte> buffer,
+        CancellationToken cancellationToken
+    )
+    {
+        // Implement ReadFullyAsync pattern but return the actual count read
+        var total = 0;
+        int read;
+        while (
+            (
+                read = await Stream
+                    .ReadAsync(buffer.Slice(total), cancellationToken)
+                    .ConfigureAwait(false)
+            ) > 0
+        )
+        {
+            total += read;
+            if (total >= buffer.Length)
+            {
+                return total;
+            }
+        }
+        return total;
+    }
+
     public override async ValueTask WriteAsync(
         ReadOnlyMemory<byte> buffer,
         CancellationToken cancellationToken = default

src/SharpCompress/IO/SourceStream.cs

@@ -222,8 +222,26 @@ public class SourceStream : Stream, IStreamStack
             SetStream(0);
             while (_prevSize + Current.Length < pos)
             {
-                _prevSize += Current.Length;
-                SetStream(_stream + 1);
+                var currentLength = Current.Length;
+                _prevSize += currentLength;
+
+                if (!SetStream(_stream + 1))
+                {
+                    // No more streams available, cannot seek to requested position
+                    throw new InvalidOperationException(
+                        $"Cannot seek to position {pos}. End of stream reached at position {_prevSize}."
+                    );
+                }
+
+                // Safety check: if we have a zero-length stream and we're still not
+                // making progress toward the target position, we're in an invalid state
+                if (currentLength == 0 && Current.Length == 0)
+                {
+                    // Both old and new stream have zero length - cannot make progress
+                    throw new InvalidOperationException(
+                        $"Cannot seek to position {pos}. Encountered zero-length streams at position {_prevSize}."
+                    );
+                }
             }
         }
 

src/SharpCompress/Readers/AbstractReader.cs

@@ -262,7 +262,7 @@ public abstract class AbstractReader<TEntry, TVolume> : IReader
     {
         using Stream s = OpenEntryStream();
         var sourceStream = WrapWithProgress(s, Entry);
-        sourceStream.CopyTo(writeStream, 81920);
+        sourceStream.CopyTo(writeStream, Constants.BufferSize);
     }
 
     internal async Task WriteAsync(Stream writeStream, CancellationToken cancellationToken)
@@ -270,11 +270,15 @@ public abstract class AbstractReader<TEntry, TVolume> : IReader
 #if NETFRAMEWORK || NETSTANDARD2_0
         using Stream s = OpenEntryStream();
         var sourceStream = WrapWithProgress(s, Entry);
-        await sourceStream.CopyToAsync(writeStream, 81920, cancellationToken).ConfigureAwait(false);
+        await sourceStream
+            .CopyToAsync(writeStream, Constants.BufferSize, cancellationToken)
+            .ConfigureAwait(false);
 #else
         await using Stream s = OpenEntryStream();
         var sourceStream = WrapWithProgress(s, Entry);
-        await sourceStream.CopyToAsync(writeStream, 81920, cancellationToken).ConfigureAwait(false);
+        await sourceStream
+            .CopyToAsync(writeStream, Constants.BufferSize, cancellationToken)
+            .ConfigureAwait(false);
 #endif
     }
 

src/SharpCompress/Readers/Ace/AceReader.cs

@@ -0,0 +1,115 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SharpCompress.Common;
+using SharpCompress.Common.Ace;
+using SharpCompress.Common.Ace.Headers;
+using SharpCompress.Common.Arj;
+
+namespace SharpCompress.Readers.Ace
+{
+    /// <summary>
+    /// Reader for ACE archives.
+    /// ACE is a proprietary archive format. This implementation supports both ACE 1.0 and ACE 2.0 formats
+    /// and can read archive metadata and extract uncompressed (stored) entries.
+    /// Compressed entries require proprietary decompression algorithms that are not publicly documented.
+    /// </summary>
+    /// <remarks>
+    /// ACE 2.0 additions over ACE 1.0:
+    /// - Improved LZ77 compression (compression type 2)
+    /// - Recovery record support
+    /// - Additional header flags
+    /// </remarks>
+    public abstract class AceReader : AbstractReader<AceEntry, AceVolume>
+    {
+        private readonly ArchiveEncoding _archiveEncoding;
+
+        internal AceReader(ReaderOptions options)
+            : base(options, ArchiveType.Ace)
+        {
+            _archiveEncoding = Options.ArchiveEncoding;
+        }
+
+        private AceReader(Stream stream, ReaderOptions options)
+            : this(options) { }
+
+        /// <summary>
+        /// Derived class must create or manage the Volume itself.
+        /// AbstractReader.Volume is get-only, so it cannot be set here.
+        /// </summary>
+        public override AceVolume? Volume => _volume;
+
+        private AceVolume? _volume;
+
+        /// <summary>
+        /// Opens an AceReader for non-seeking usage with a single volume.
+        /// </summary>
+        /// <param name="stream">The stream containing the ACE archive.</param>
+        /// <param name="options">Reader options.</param>
+        /// <returns>An AceReader instance.</returns>
+        public static AceReader Open(Stream stream, ReaderOptions? options = null)
+        {
+            stream.NotNull(nameof(stream));
+            return new SingleVolumeAceReader(stream, options ?? new ReaderOptions());
+        }
+
+        /// <summary>
+        /// Opens an AceReader for Non-seeking usage with multiple volumes
+        /// </summary>
+        /// <param name="streams"></param>
+        /// <param name="options"></param>
+        /// <returns></returns>
+        public static AceReader Open(IEnumerable<Stream> streams, ReaderOptions? options = null)
+        {
+            streams.NotNull(nameof(streams));
+            return new MultiVolumeAceReader(streams, options ?? new ReaderOptions());
+        }
+
+        protected abstract void ValidateArchive(AceVolume archive);
+
+        protected override IEnumerable<AceEntry> GetEntries(Stream stream)
+        {
+            var mainHeaderReader = new AceMainHeader(_archiveEncoding);
+            var mainHeader = mainHeaderReader.Read(stream);
+            if (mainHeader == null)
+            {
+                yield break;
+            }
+
+            if (mainHeader?.IsMultiVolume == true)
+            {
+                throw new MultiVolumeExtractionException(
+                    "Multi volumes are currently not supported"
+                );
+            }
+
+            if (_volume == null)
+            {
+                _volume = new AceVolume(stream, Options, 0);
+                ValidateArchive(_volume);
+            }
+
+            var localHeaderReader = new AceFileHeader(_archiveEncoding);
+            while (true)
+            {
+                var localHeader = localHeaderReader.Read(stream);
+                if (localHeader?.IsFileEncrypted == true)
+                {
+                    throw new CryptographicException(
+                        "Password protected archives are currently not supported"
+                    );
+                }
+                if (localHeader == null)
+                    break;
+
+                yield return new AceEntry(new AceFilePart((AceFileHeader)localHeader, stream));
+            }
+        }
+
+        protected virtual IEnumerable<FilePart> CreateFilePartEnumerableForCurrentEntry() =>
+            Entry.Parts;
+    }
+}

src/SharpCompress/Readers/Ace/MultiVolumeAceReader.cs

@@ -0,0 +1,117 @@
+#nullable disable
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SharpCompress.Common;
+using SharpCompress.Common.Ace;
+
+namespace SharpCompress.Readers.Ace
+{
+    internal class MultiVolumeAceReader : AceReader
+    {
+        private readonly IEnumerator<Stream> streams;
+        private Stream tempStream;
+
+        internal MultiVolumeAceReader(IEnumerable<Stream> streams, ReaderOptions options)
+            : base(options) => this.streams = streams.GetEnumerator();
+
+        protected override void ValidateArchive(AceVolume archive) { }
+
+        protected override Stream RequestInitialStream()
+        {
+            if (streams.MoveNext())
+            {
+                return streams.Current;
+            }
+            throw new MultiVolumeExtractionException(
+                "No stream provided when requested by MultiVolumeAceReader"
+            );
+        }
+
+        internal override bool NextEntryForCurrentStream()
+        {
+            if (!base.NextEntryForCurrentStream())
+            {
+                // if we're got another stream to try to process then do so
+                return streams.MoveNext() && LoadStreamForReading(streams.Current);
+            }
+            return true;
+        }
+
+        protected override IEnumerable<FilePart> CreateFilePartEnumerableForCurrentEntry()
+        {
+            var enumerator = new MultiVolumeStreamEnumerator(this, streams, tempStream);
+            tempStream = null;
+            return enumerator;
+        }
+
+        private class MultiVolumeStreamEnumerator : IEnumerable<FilePart>, IEnumerator<FilePart>
+        {
+            private readonly MultiVolumeAceReader reader;
+            private readonly IEnumerator<Stream> nextReadableStreams;
+            private Stream tempStream;
+            private bool isFirst = true;
+
+            internal MultiVolumeStreamEnumerator(
+                MultiVolumeAceReader r,
+                IEnumerator<Stream> nextReadableStreams,
+                Stream tempStream
+            )
+            {
+                reader = r;
+                this.nextReadableStreams = nextReadableStreams;
+                this.tempStream = tempStream;
+            }
+
+            public IEnumerator<FilePart> GetEnumerator() => this;
+
+            IEnumerator IEnumerable.GetEnumerator() => this;
+
+            public FilePart Current { get; private set; }
+
+            public void Dispose() { }
+
+            object IEnumerator.Current => Current;
+
+            public bool MoveNext()
+            {
+                if (isFirst)
+                {
+                    Current = reader.Entry.Parts.First();
+                    isFirst = false; //first stream already to go
+                    return true;
+                }
+
+                if (!reader.Entry.IsSplitAfter)
+                {
+                    return false;
+                }
+                if (tempStream != null)
+                {
+                    reader.LoadStreamForReading(tempStream);
+                    tempStream = null;
+                }
+                else if (!nextReadableStreams.MoveNext())
+                {
+                    throw new MultiVolumeExtractionException(
+                        "No stream provided when requested by MultiVolumeAceReader"
+                    );
+                }
+                else
+                {
+                    reader.LoadStreamForReading(nextReadableStreams.Current);
+                }
+
+                Current = reader.Entry.Parts.First();
+                return true;
+            }
+
+            public void Reset() { }
+        }
+    }
+}

src/SharpCompress/Readers/Ace/SingleVolumeAceReader.cs

@@ -0,0 +1,31 @@
+using System;
+using System.IO;
+using SharpCompress.Common;
+using SharpCompress.Common.Ace;
+
+namespace SharpCompress.Readers.Ace
+{
+    internal class SingleVolumeAceReader : AceReader
+    {
+        private readonly Stream _stream;
+
+        internal SingleVolumeAceReader(Stream stream, ReaderOptions options)
+            : base(options)
+        {
+            stream.NotNull(nameof(stream));
+            _stream = stream;
+        }
+
+        protected override Stream RequestInitialStream() => _stream;
+
+        protected override void ValidateArchive(AceVolume archive)
+        {
+            if (archive.IsMultiVolume)
+            {
+                throw new MultiVolumeExtractionException(
+                    "Streamed archive is a Multi-volume archive. Use a different AceReader method to extract."
+                );
+            }
+        }
+    }
+}

src/SharpCompress/Readers/ReaderFactory.cs

@@ -70,7 +70,7 @@ public static class ReaderFactory
         }
 
         throw new InvalidFormatException(
-            "Cannot determine compressed stream type.  Supported Reader Formats: Arc, Arj, Zip, GZip, BZip2, Tar, Rar, LZip, XZ, ZStandard"
+            "Cannot determine compressed stream type.  Supported Reader Formats: Ace, Arc, Arj, Zip, GZip, BZip2, Tar, Rar, LZip, XZ, ZStandard"
         );
     }
 }

src/SharpCompress/Readers/ReaderOptions.cs

@@ -5,6 +5,14 @@ namespace SharpCompress.Readers;
 
 public class ReaderOptions : OptionsBase
 {
+    /// <summary>
+    /// The default buffer size for stream operations.
+    /// This value (65536 bytes) is preserved for backward compatibility.
+    /// New code should use Constants.BufferSize instead (81920 bytes), which matches .NET's Stream.CopyTo default.
+    /// </summary>
+    [Obsolete(
+        "Use Constants.BufferSize instead. This constant will be removed in a future version."
+    )]
     public const int DefaultBufferSize = 0x10000;
 
     /// <summary>
@@ -16,7 +24,7 @@ public class ReaderOptions : OptionsBase
 
     public bool DisableCheckIncomplete { get; set; }
 
-    public int BufferSize { get; set; } = DefaultBufferSize;
+    public int BufferSize { get; set; } = Constants.BufferSize;
 
     /// <summary>
     /// Provide a hint for the extension of the archive being read, can speed up finding the correct decoder.  Should be without the leading period in the form like: tar.gz or zip

src/SharpCompress/SharpCompress.csproj

@@ -2,11 +2,11 @@
   <PropertyGroup>
     <AssemblyTitle>SharpCompress - Pure C# Decompression/Compression</AssemblyTitle>
     <NeutralLanguage>en-US</NeutralLanguage>
-    <VersionPrefix>0.42.0</VersionPrefix>
-    <AssemblyVersion>0.42.0</AssemblyVersion>
-    <FileVersion>0.42.0</FileVersion>
+    <VersionPrefix>0.0.0</VersionPrefix>
+    <AssemblyVersion>0.0.0.0</AssemblyVersion>
+    <FileVersion>0.0.0.0</FileVersion>
     <Authors>Adam Hathcock</Authors>
-    <TargetFrameworks>net48;net8.0;net10.0</TargetFrameworks>
+    <TargetFrameworks>net48;netstandard2.0;net8.0;net10.0</TargetFrameworks>
     <AssemblyName>SharpCompress</AssemblyName>
     <AssemblyOriginatorKeyFile>../../SharpCompress.snk</AssemblyOriginatorKeyFile>
     <SignAssembly>true</SignAssembly>
@@ -17,7 +17,7 @@
     <Copyright>Copyright (c) 2025  Adam Hathcock</Copyright>
     <GenerateAssemblyTitleAttribute>false</GenerateAssemblyTitleAttribute>
     <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
-    <Description>SharpCompress is a compression library for NET 4.8/NET 8.0/NET 10.0 that can unrar, decompress 7zip, decompress xz, zip/unzip, tar/untar lzip/unlzip, bzip2/unbzip2 and gzip/ungzip with forward-only reading and file random access APIs. Write support for zip/tar/bzip2/gzip is implemented.</Description>
+    <Description>SharpCompress is a compression library for NET 4.8/NET Standard 2.0/NET 8.0/NET 10.0 that can unrar, decompress 7zip, decompress xz, zip/unzip, tar/untar lzip/unlzip, bzip2/unbzip2 and gzip/ungzip with forward-only reading and file random access APIs. Write support for zip/tar/bzip2/gzip is implemented.</Description>
     <PublishRepositoryUrl>true</PublishRepositoryUrl>
     <IncludeSymbols>true</IncludeSymbols>
     <DebugType>embedded</DebugType>
@@ -30,25 +30,13 @@
   </PropertyGroup>
   <PropertyGroup Condition=" '$(TargetFramework)' == 'net8.0' Or '$(TargetFramework)' == 'net10.0' ">
     <IsTrimmable>true</IsTrimmable>
+    <IsAotCompatible>true</IsAotCompatible>
   </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(TargetFramework)|$(Platform)'=='Debug|net8.0|AnyCPU'">
-    <DefineConstants>$(DefineConstants);DEBUG_STREAMS</DefineConstants>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(TargetFramework)|$(Platform)'=='Debug|net10.0|AnyCPU'">
-    <DefineConstants>$(DefineConstants);DEBUG_STREAMS</DefineConstants>
-  </PropertyGroup>
-  <ItemGroup>
-    <PackageReference Include="Microsoft.SourceLink.GitHub" PrivateAssets="All" />
-  </ItemGroup>
-  <ItemGroup Condition=" '$(TargetFramework)' == 'net8.0' Or '$(TargetFramework)' == 'net10.0' ">
-    <PackageReference Include="Microsoft.NET.ILLink.Tasks" PrivateAssets="All" />
-  </ItemGroup>
-  <ItemGroup Condition=" '$(TargetFramework)' == 'net48' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'net48' Or '$(TargetFramework)' == 'netstandard2.0' ">
     <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" />
     <PackageReference Include="System.Text.Encoding.CodePages" />
     <PackageReference Include="System.Buffers" />
     <PackageReference Include="System.Memory" />
-    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" PrivateAssets="All" />
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\README.md" Pack="true" PackagePath="\" />

src/SharpCompress/Utility.cs

@@ -11,8 +11,6 @@ namespace SharpCompress;
 
 internal static class Utility
 {
-    //80kb is a good industry standard temporary buffer size
-    private const int TEMP_BUFFER_SIZE = 81920;
     private static readonly HashSet<char> invalidChars = new(Path.GetInvalidFileNameChars());
 
     public static ReadOnlyCollection<T> ToReadOnly<T>(this IList<T> items) => new(items);
@@ -71,48 +69,16 @@ internal static class Utility
             return;
         }
 
-        using var buffer = MemoryPool<byte>.Shared.Rent(TEMP_BUFFER_SIZE);
-        while (advanceAmount > 0)
-        {
-            var toRead = (int)Math.Min(buffer.Memory.Length, advanceAmount);
-            var read = source.Read(buffer.Memory.Slice(0, toRead).Span);
-            if (read <= 0)
-            {
-                break;
-            }
-            advanceAmount -= read;
-        }
+        using var readOnlySubStream = new IO.ReadOnlySubStream(source, advanceAmount);
+        readOnlySubStream.CopyTo(Stream.Null);
     }
 
-    public static void Skip(this Stream source)
-    {
-        using var buffer = MemoryPool<byte>.Shared.Rent(TEMP_BUFFER_SIZE);
-        while (source.Read(buffer.Memory.Span) > 0) { }
-    }
+    public static void Skip(this Stream source) => source.CopyTo(Stream.Null);
 
-    public static async Task SkipAsync(
-        this Stream source,
-        CancellationToken cancellationToken = default
-    )
+    public static Task SkipAsync(this Stream source, CancellationToken cancellationToken = default)
     {
-        var array = ArrayPool<byte>.Shared.Rent(TEMP_BUFFER_SIZE);
-        try
-        {
-            while (true)
-            {
-                var read = await source
-                    .ReadAsync(array, 0, array.Length, cancellationToken)
-                    .ConfigureAwait(false);
-                if (read <= 0)
-                {
-                    break;
-                }
-            }
-        }
-        finally
-        {
-            ArrayPool<byte>.Shared.Return(array);
-        }
+        cancellationToken.ThrowIfCancellationRequested();
+        return source.CopyToAsync(Stream.Null);
     }
 
     public static DateTime DosDateToDateTime(ushort iDate, ushort iTime)
@@ -183,7 +149,7 @@ internal static class Utility
 
     public static long TransferTo(this Stream source, Stream destination, long maxLength)
     {
-        var array = ArrayPool<byte>.Shared.Rent(TEMP_BUFFER_SIZE);
+        var array = ArrayPool<byte>.Shared.Rent(Common.Constants.BufferSize);
         try
         {
             var maxReadSize = array.Length;
@@ -222,7 +188,7 @@ internal static class Utility
         CancellationToken cancellationToken = default
     )
     {
-        var array = ArrayPool<byte>.Shared.Rent(TEMP_BUFFER_SIZE);
+        var array = ArrayPool<byte>.Shared.Rent(Common.Constants.BufferSize);
         try
         {
             var maxReadSize = array.Length;
@@ -300,7 +266,7 @@ internal static class Utility
             return;
         }
 
-        var array = ArrayPool<byte>.Shared.Rent(TEMP_BUFFER_SIZE);
+        var array = ArrayPool<byte>.Shared.Rent(Common.Constants.BufferSize);
         try
         {
             while (advanceAmount > 0)

src/SharpCompress/Writers/GZip/GZipWriter.cs

@@ -48,7 +48,7 @@ public sealed class GZipWriter : AbstractWriter
         stream.FileName = filename;
         stream.LastModified = modificationTime;
         var progressStream = WrapWithProgress(source, filename);
-        progressStream.CopyTo(stream);
+        progressStream.CopyTo(stream, Constants.BufferSize);
         _wroteToStream = true;
     }
 

src/SharpCompress/Writers/Zip/ZipWriter.cs

@@ -15,6 +15,7 @@ using SharpCompress.Compressors.LZMA;
 using SharpCompress.Compressors.PPMd;
 using SharpCompress.Compressors.ZStandard;
 using SharpCompress.IO;
+using Constants = SharpCompress.Common.Constants;
 
 namespace SharpCompress.Writers.Zip;
 
@@ -87,7 +88,7 @@ public class ZipWriter : AbstractWriter
     {
         using var output = WriteToStream(entryPath, zipWriterEntryOptions);
         var progressStream = WrapWithProgress(source, entryPath);
-        progressStream.CopyTo(output);
+        progressStream.CopyTo(output, Constants.BufferSize);
     }
 
     public Stream WriteToStream(string entryPath, ZipWriterEntryOptions options)

src/SharpCompress/packages.lock.json

@@ -22,12 +22,12 @@
       },
       "Microsoft.SourceLink.GitHub": {
         "type": "Direct",
-        "requested": "[8.0.0, )",
-        "resolved": "8.0.0",
-        "contentHash": "G5q7OqtwIyGTkeIOAc3u2ZuV/kicQaec5EaRnc0pIeSnh9LUjj+PYQrJYBURvDt7twGl2PKA7nSN0kz1Zw5bnQ==",
+        "requested": "[10.0.102, )",
+        "resolved": "10.0.102",
+        "contentHash": "Oxq3RCIJSdtpIU4hLqO7XaDe/Ra3HS9Wi8rJl838SAg6Zu1iQjerA0+xXWBgUFYbgknUGCLOU0T+lzMLkvY9Qg==",
         "dependencies": {
-          "Microsoft.Build.Tasks.Git": "8.0.0",
-          "Microsoft.SourceLink.Common": "8.0.0"
+          "Microsoft.Build.Tasks.Git": "10.0.102",
+          "Microsoft.SourceLink.Common": "10.0.102"
         }
       },
       "System.Buffers": {
@@ -60,8 +60,8 @@
       },
       "Microsoft.Build.Tasks.Git": {
         "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "bZKfSIKJRXLTuSzLudMFte/8CempWjVamNUR5eHJizsy+iuOuO/k2gnh7W0dHJmYY0tBf+gUErfluCv5mySAOQ=="
+        "resolved": "10.0.102",
+        "contentHash": "0i81LYX31U6UiXz4NOLbvc++u+/mVDmOt+PskrM/MygpDxkv9THKQyRUmavBpLK6iBV0abNWnn+CQgSRz//Pwg=="
       },
       "Microsoft.NETFramework.ReferenceAssemblies.net48": {
         "type": "Transitive",
@@ -70,8 +70,8 @@
       },
       "Microsoft.SourceLink.Common": {
         "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "dk9JPxTCIevS75HyEQ0E4OVAFhB2N+V9ShCXf8Q6FkUQZDkgLI12y679Nym1YqsiSysuQskT7Z+6nUf3yab6Vw=="
+        "resolved": "10.0.102",
+        "contentHash": "Mk1IMb9q5tahC2NltxYXFkLBtuBvfBoCQ3pIxYQWfzbCE9o1OB9SsHe0hnNGo7lWgTA/ePbFAJLWu6nLL9K17A=="
       },
       "System.Numerics.Vectors": {
         "type": "Transitive",
@@ -97,6 +97,110 @@
         "contentHash": "+RJT4qaekpZ7DDLhf+LTjq+E48jieKiY9ulJ+BoxKmZblIJfIJT8Ufcaa/clQqnYvWs8jugfGSMu8ylS0caG0w=="
       }
     },
+    ".NETStandard,Version=v2.0": {
+      "Microsoft.Bcl.AsyncInterfaces": {
+        "type": "Direct",
+        "requested": "[10.0.0, )",
+        "resolved": "10.0.0",
+        "contentHash": "vFuwSLj9QJBbNR0NeNO4YVASUbokxs+i/xbuu8B+Fs4FAZg5QaFa6eGrMaRqTzzNI5tAb97T7BhSxtLckFyiRA==",
+        "dependencies": {
+          "System.Threading.Tasks.Extensions": "4.6.3"
+        }
+      },
+      "Microsoft.NETFramework.ReferenceAssemblies": {
+        "type": "Direct",
+        "requested": "[1.0.3, )",
+        "resolved": "1.0.3",
+        "contentHash": "vUc9Npcs14QsyOD01tnv/m8sQUnGTGOw1BCmKcv77LBJY7OxhJ+zJF7UD/sCL3lYNFuqmQEVlkfS4Quif6FyYg==",
+        "dependencies": {
+          "Microsoft.NETFramework.ReferenceAssemblies.net461": "1.0.3"
+        }
+      },
+      "Microsoft.SourceLink.GitHub": {
+        "type": "Direct",
+        "requested": "[10.0.102, )",
+        "resolved": "10.0.102",
+        "contentHash": "Oxq3RCIJSdtpIU4hLqO7XaDe/Ra3HS9Wi8rJl838SAg6Zu1iQjerA0+xXWBgUFYbgknUGCLOU0T+lzMLkvY9Qg==",
+        "dependencies": {
+          "Microsoft.Build.Tasks.Git": "10.0.102",
+          "Microsoft.SourceLink.Common": "10.0.102"
+        }
+      },
+      "NETStandard.Library": {
+        "type": "Direct",
+        "requested": "[2.0.3, )",
+        "resolved": "2.0.3",
+        "contentHash": "st47PosZSHrjECdjeIzZQbzivYBJFv6P2nv4cj2ypdI204DO+vZ7l5raGMiX4eXMJ53RfOIg+/s4DHVZ54Nu2A==",
+        "dependencies": {
+          "Microsoft.NETCore.Platforms": "1.1.0"
+        }
+      },
+      "System.Buffers": {
+        "type": "Direct",
+        "requested": "[4.6.1, )",
+        "resolved": "4.6.1",
+        "contentHash": "N8GXpmiLMtljq7gwvyS+1QvKT/W2J8sNAvx+HVg4NGmsG/H+2k/y9QI23auLJRterrzCiDH+IWAw4V/GPwsMlw=="
+      },
+      "System.Memory": {
+        "type": "Direct",
+        "requested": "[4.6.3, )",
+        "resolved": "4.6.3",
+        "contentHash": "qdcDOgnFZY40+Q9876JUHnlHu7bosOHX8XISRoH94fwk6hgaeQGSgfZd8srWRZNt5bV9ZW2TljcegDNxsf+96A==",
+        "dependencies": {
+          "System.Buffers": "4.6.1",
+          "System.Numerics.Vectors": "4.6.1",
+          "System.Runtime.CompilerServices.Unsafe": "6.1.2"
+        }
+      },
+      "System.Text.Encoding.CodePages": {
+        "type": "Direct",
+        "requested": "[10.0.0, )",
+        "resolved": "10.0.0",
+        "contentHash": "QLP54mIATaBpjGlsZIxga38VPk1G9js0Kw651B+bvrXi2kSgGZYrxJSpM3whhTZCBK4HEBHX3fzfDQMw7CXHGQ==",
+        "dependencies": {
+          "System.Memory": "4.6.3",
+          "System.Runtime.CompilerServices.Unsafe": "6.1.2"
+        }
+      },
+      "Microsoft.Build.Tasks.Git": {
+        "type": "Transitive",
+        "resolved": "10.0.102",
+        "contentHash": "0i81LYX31U6UiXz4NOLbvc++u+/mVDmOt+PskrM/MygpDxkv9THKQyRUmavBpLK6iBV0abNWnn+CQgSRz//Pwg=="
+      },
+      "Microsoft.NETCore.Platforms": {
+        "type": "Transitive",
+        "resolved": "1.1.0",
+        "contentHash": "kz0PEW2lhqygehI/d6XsPCQzD7ff7gUJaVGPVETX611eadGsA3A877GdSlU0LRVMCTH/+P3o2iDTak+S08V2+A=="
+      },
+      "Microsoft.NETFramework.ReferenceAssemblies.net461": {
+        "type": "Transitive",
+        "resolved": "1.0.3",
+        "contentHash": "AmOJZwCqnOCNp6PPcf9joyogScWLtwy0M1WkqfEQ0M9nYwyDD7EX9ZjscKS5iYnyvteX7kzSKFCKt9I9dXA6mA=="
+      },
+      "Microsoft.SourceLink.Common": {
+        "type": "Transitive",
+        "resolved": "10.0.102",
+        "contentHash": "Mk1IMb9q5tahC2NltxYXFkLBtuBvfBoCQ3pIxYQWfzbCE9o1OB9SsHe0hnNGo7lWgTA/ePbFAJLWu6nLL9K17A=="
+      },
+      "System.Numerics.Vectors": {
+        "type": "Transitive",
+        "resolved": "4.6.1",
+        "contentHash": "sQxefTnhagrhoq2ReR0D/6K0zJcr9Hrd6kikeXsA1I8kOCboTavcUC4r7TSfpKFeE163uMuxZcyfO1mGO3EN8Q=="
+      },
+      "System.Runtime.CompilerServices.Unsafe": {
+        "type": "Transitive",
+        "resolved": "6.1.2",
+        "contentHash": "2hBr6zdbIBTDE3EhK7NSVNdX58uTK6iHW/P/Axmm9sl1xoGSLqDvMtpecn226TNwHByFokYwJmt/aQQNlO5CRw=="
+      },
+      "System.Threading.Tasks.Extensions": {
+        "type": "Transitive",
+        "resolved": "4.6.3",
+        "contentHash": "7sCiwilJLYbTZELaKnc7RecBBXWXA+xMLQWZKWawBxYjp6DBlSE3v9/UcvKBvr1vv2tTOhipiogM8rRmxlhrVA==",
+        "dependencies": {
+          "System.Runtime.CompilerServices.Unsafe": "6.1.2"
+        }
+      }
+    },
     "net10.0": {
       "Microsoft.NET.ILLink.Tasks": {
         "type": "Direct",
@@ -104,53 +208,81 @@
         "resolved": "10.0.0",
         "contentHash": "kICGrGYEzCNI3wPzfEXcwNHgTvlvVn9yJDhSdRK+oZQy4jvYH529u7O0xf5ocQKzOMjfS07+3z9PKRIjrFMJDA=="
       },
+      "Microsoft.NETFramework.ReferenceAssemblies": {
+        "type": "Direct",
+        "requested": "[1.0.3, )",
+        "resolved": "1.0.3",
+        "contentHash": "vUc9Npcs14QsyOD01tnv/m8sQUnGTGOw1BCmKcv77LBJY7OxhJ+zJF7UD/sCL3lYNFuqmQEVlkfS4Quif6FyYg==",
+        "dependencies": {
+          "Microsoft.NETFramework.ReferenceAssemblies.net461": "1.0.3"
+        }
+      },
       "Microsoft.SourceLink.GitHub": {
         "type": "Direct",
-        "requested": "[8.0.0, )",
-        "resolved": "8.0.0",
-        "contentHash": "G5q7OqtwIyGTkeIOAc3u2ZuV/kicQaec5EaRnc0pIeSnh9LUjj+PYQrJYBURvDt7twGl2PKA7nSN0kz1Zw5bnQ==",
+        "requested": "[10.0.102, )",
+        "resolved": "10.0.102",
+        "contentHash": "Oxq3RCIJSdtpIU4hLqO7XaDe/Ra3HS9Wi8rJl838SAg6Zu1iQjerA0+xXWBgUFYbgknUGCLOU0T+lzMLkvY9Qg==",
         "dependencies": {
-          "Microsoft.Build.Tasks.Git": "8.0.0",
-          "Microsoft.SourceLink.Common": "8.0.0"
+          "Microsoft.Build.Tasks.Git": "10.0.102",
+          "Microsoft.SourceLink.Common": "10.0.102"
         }
       },
       "Microsoft.Build.Tasks.Git": {
         "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "bZKfSIKJRXLTuSzLudMFte/8CempWjVamNUR5eHJizsy+iuOuO/k2gnh7W0dHJmYY0tBf+gUErfluCv5mySAOQ=="
+        "resolved": "10.0.102",
+        "contentHash": "0i81LYX31U6UiXz4NOLbvc++u+/mVDmOt+PskrM/MygpDxkv9THKQyRUmavBpLK6iBV0abNWnn+CQgSRz//Pwg=="
+      },
+      "Microsoft.NETFramework.ReferenceAssemblies.net461": {
+        "type": "Transitive",
+        "resolved": "1.0.3",
+        "contentHash": "AmOJZwCqnOCNp6PPcf9joyogScWLtwy0M1WkqfEQ0M9nYwyDD7EX9ZjscKS5iYnyvteX7kzSKFCKt9I9dXA6mA=="
       },
       "Microsoft.SourceLink.Common": {
         "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "dk9JPxTCIevS75HyEQ0E4OVAFhB2N+V9ShCXf8Q6FkUQZDkgLI12y679Nym1YqsiSysuQskT7Z+6nUf3yab6Vw=="
+        "resolved": "10.0.102",
+        "contentHash": "Mk1IMb9q5tahC2NltxYXFkLBtuBvfBoCQ3pIxYQWfzbCE9o1OB9SsHe0hnNGo7lWgTA/ePbFAJLWu6nLL9K17A=="
       }
     },
     "net8.0": {
       "Microsoft.NET.ILLink.Tasks": {
         "type": "Direct",
-        "requested": "[10.0.0, )",
-        "resolved": "10.0.0",
-        "contentHash": "kICGrGYEzCNI3wPzfEXcwNHgTvlvVn9yJDhSdRK+oZQy4jvYH529u7O0xf5ocQKzOMjfS07+3z9PKRIjrFMJDA=="
+        "requested": "[8.0.22, )",
+        "resolved": "8.0.22",
+        "contentHash": "MhcMithKEiyyNkD2ZfbDZPmcOdi0GheGfg8saEIIEfD/fol3iHmcV8TsZkD4ZYz5gdUuoX4YtlVySUU7Sxl9SQ=="
+      },
+      "Microsoft.NETFramework.ReferenceAssemblies": {
+        "type": "Direct",
+        "requested": "[1.0.3, )",
+        "resolved": "1.0.3",
+        "contentHash": "vUc9Npcs14QsyOD01tnv/m8sQUnGTGOw1BCmKcv77LBJY7OxhJ+zJF7UD/sCL3lYNFuqmQEVlkfS4Quif6FyYg==",
+        "dependencies": {
+          "Microsoft.NETFramework.ReferenceAssemblies.net461": "1.0.3"
+        }
       },
       "Microsoft.SourceLink.GitHub": {
         "type": "Direct",
-        "requested": "[8.0.0, )",
-        "resolved": "8.0.0",
-        "contentHash": "G5q7OqtwIyGTkeIOAc3u2ZuV/kicQaec5EaRnc0pIeSnh9LUjj+PYQrJYBURvDt7twGl2PKA7nSN0kz1Zw5bnQ==",
+        "requested": "[10.0.102, )",
+        "resolved": "10.0.102",
+        "contentHash": "Oxq3RCIJSdtpIU4hLqO7XaDe/Ra3HS9Wi8rJl838SAg6Zu1iQjerA0+xXWBgUFYbgknUGCLOU0T+lzMLkvY9Qg==",
         "dependencies": {
-          "Microsoft.Build.Tasks.Git": "8.0.0",
-          "Microsoft.SourceLink.Common": "8.0.0"
+          "Microsoft.Build.Tasks.Git": "10.0.102",
+          "Microsoft.SourceLink.Common": "10.0.102"
         }
       },
       "Microsoft.Build.Tasks.Git": {
         "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "bZKfSIKJRXLTuSzLudMFte/8CempWjVamNUR5eHJizsy+iuOuO/k2gnh7W0dHJmYY0tBf+gUErfluCv5mySAOQ=="
+        "resolved": "10.0.102",
+        "contentHash": "0i81LYX31U6UiXz4NOLbvc++u+/mVDmOt+PskrM/MygpDxkv9THKQyRUmavBpLK6iBV0abNWnn+CQgSRz//Pwg=="
+      },
+      "Microsoft.NETFramework.ReferenceAssemblies.net461": {
+        "type": "Transitive",
+        "resolved": "1.0.3",
+        "contentHash": "AmOJZwCqnOCNp6PPcf9joyogScWLtwy0M1WkqfEQ0M9nYwyDD7EX9ZjscKS5iYnyvteX7kzSKFCKt9I9dXA6mA=="
       },
       "Microsoft.SourceLink.Common": {
         "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "dk9JPxTCIevS75HyEQ0E4OVAFhB2N+V9ShCXf8Q6FkUQZDkgLI12y679Nym1YqsiSysuQskT7Z+6nUf3yab6Vw=="
+        "resolved": "10.0.102",
+        "contentHash": "Mk1IMb9q5tahC2NltxYXFkLBtuBvfBoCQ3pIxYQWfzbCE9o1OB9SsHe0hnNGo7lWgTA/ePbFAJLWu6nLL9K17A=="
       }
     }
   }

tests/SharpCompress.Performance/packages.lock.json

@@ -12,6 +12,25 @@
           "JetBrains.Profiler.Api": "1.4.10"
         }
       },
+      "Microsoft.NETFramework.ReferenceAssemblies": {
+        "type": "Direct",
+        "requested": "[1.0.3, )",
+        "resolved": "1.0.3",
+        "contentHash": "vUc9Npcs14QsyOD01tnv/m8sQUnGTGOw1BCmKcv77LBJY7OxhJ+zJF7UD/sCL3lYNFuqmQEVlkfS4Quif6FyYg==",
+        "dependencies": {
+          "Microsoft.NETFramework.ReferenceAssemblies.net461": "1.0.3"
+        }
+      },
+      "Microsoft.SourceLink.GitHub": {
+        "type": "Direct",
+        "requested": "[10.0.102, )",
+        "resolved": "10.0.102",
+        "contentHash": "Oxq3RCIJSdtpIU4hLqO7XaDe/Ra3HS9Wi8rJl838SAg6Zu1iQjerA0+xXWBgUFYbgknUGCLOU0T+lzMLkvY9Qg==",
+        "dependencies": {
+          "Microsoft.Build.Tasks.Git": "10.0.102",
+          "Microsoft.SourceLink.Common": "10.0.102"
+        }
+      },
       "JetBrains.FormatRipper": {
         "type": "Transitive",
         "resolved": "2.4.0",
@@ -33,6 +52,21 @@
           "JetBrains.HabitatDetector": "1.4.5"
         }
       },
+      "Microsoft.Build.Tasks.Git": {
+        "type": "Transitive",
+        "resolved": "10.0.102",
+        "contentHash": "0i81LYX31U6UiXz4NOLbvc++u+/mVDmOt+PskrM/MygpDxkv9THKQyRUmavBpLK6iBV0abNWnn+CQgSRz//Pwg=="
+      },
+      "Microsoft.NETFramework.ReferenceAssemblies.net461": {
+        "type": "Transitive",
+        "resolved": "1.0.3",
+        "contentHash": "AmOJZwCqnOCNp6PPcf9joyogScWLtwy0M1WkqfEQ0M9nYwyDD7EX9ZjscKS5iYnyvteX7kzSKFCKt9I9dXA6mA=="
+      },
+      "Microsoft.SourceLink.Common": {
+        "type": "Transitive",
+        "resolved": "10.0.102",
+        "contentHash": "Mk1IMb9q5tahC2NltxYXFkLBtuBvfBoCQ3pIxYQWfzbCE9o1OB9SsHe0hnNGo7lWgTA/ePbFAJLWu6nLL9K17A=="
+      },
       "sharpcompress": {
         "type": "Project"
       }

tests/SharpCompress.Test/Ace/AceReaderTests.cs

@@ -0,0 +1,61 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SharpCompress.Common;
+using SharpCompress.Readers;
+using SharpCompress.Readers.Ace;
+using Xunit;
+
+namespace SharpCompress.Test.Ace
+{
+    public class AceReaderTests : ReaderTests
+    {
+        public AceReaderTests()
+        {
+            UseExtensionInsteadOfNameToVerify = true;
+            UseCaseInsensitiveToVerify = true;
+        }
+
+        [Fact]
+        public void Ace_Uncompressed_Read() => Read("Ace.store.ace", CompressionType.None);
+
+        [Fact]
+        public void Ace_Encrypted_Read()
+        {
+            var exception = Assert.Throws<CryptographicException>(() => Read("Ace.encrypted.ace"));
+        }
+
+        [Theory]
+        [InlineData("Ace.method1.ace", CompressionType.AceLZ77)]
+        [InlineData("Ace.method1-solid.ace", CompressionType.AceLZ77)]
+        [InlineData("Ace.method2.ace", CompressionType.AceLZ77)]
+        [InlineData("Ace.method2-solid.ace", CompressionType.AceLZ77)]
+        public void Ace_Unsupported_ShouldThrow(string fileName, CompressionType compressionType)
+        {
+            var exception = Assert.Throws<NotSupportedException>(() =>
+                Read(fileName, compressionType)
+            );
+        }
+
+        [Theory]
+        [InlineData("Ace.store.largefile.ace", CompressionType.None)]
+        public void Ace_LargeFileTest_Read(string fileName, CompressionType compressionType)
+        {
+            ReadForBufferBoundaryCheck(fileName, compressionType);
+        }
+
+        [Fact]
+        public void Ace_Multi_Reader()
+        {
+            var exception = Assert.Throws<MultiVolumeExtractionException>(() =>
+                DoMultiReader(
+                    ["Ace.store.split.ace", "Ace.store.split.c01"],
+                    streams => AceReader.Open(streams)
+                )
+            );
+        }
+    }
+}

tests/SharpCompress.Test/Arj/ArjReaderTests.cs

@@ -45,14 +45,17 @@ namespace SharpCompress.Test.Arj
         public void Arj_Multi_Reader()
         {
             var exception = Assert.Throws<MultiVolumeExtractionException>(() =>
-                DoArj_Multi_Reader([
-                    "Arj.store.split.arj",
-                    "Arj.store.split.a01",
-                    "Arj.store.split.a02",
-                    "Arj.store.split.a03",
-                    "Arj.store.split.a04",
-                    "Arj.store.split.a05",
-                ])
+                DoMultiReader(
+                    [
+                        "Arj.store.split.arj",
+                        "Arj.store.split.a01",
+                        "Arj.store.split.a02",
+                        "Arj.store.split.a03",
+                        "Arj.store.split.a04",
+                        "Arj.store.split.a05",
+                    ],
+                    streams => ArjReader.Open(streams)
+                )
             );
         }
 
@@ -74,26 +77,5 @@ namespace SharpCompress.Test.Arj
         {
             ReadForBufferBoundaryCheck(fileName, compressionType);
         }
-
-        private void DoArj_Multi_Reader(string[] archives)
-        {
-            using (
-                var reader = ArjReader.Open(
-                    archives
-                        .Select(s => Path.Combine(TEST_ARCHIVES_PATH, s))
-                        .Select(p => File.OpenRead(p))
-                )
-            )
-            {
-                while (reader.MoveToNextEntry())
-                {
-                    reader.WriteEntryToDirectory(
-                        SCRATCH_FILES_PATH,
-                        new ExtractionOptions { ExtractFullPath = true, Overwrite = true }
-                    );
-                }
-            }
-            VerifyFiles();
-        }
     }
 }

tests/SharpCompress.Test/Mocks/ForwardOnlyStream.cs

@@ -2,8 +2,8 @@ using System;
 using System.IO;
 using System.Threading;
 using System.Threading.Tasks;
+using SharpCompress.Common;
 using SharpCompress.IO;
-using SharpCompress.Readers;
 
 namespace SharpCompress.Test.Mocks;
 
@@ -31,8 +31,8 @@ public class ForwardOnlyStream : SharpCompressStream, IStreamStack
 
     public bool IsDisposed { get; private set; }
 
-    public ForwardOnlyStream(Stream stream, int bufferSize = ReaderOptions.DefaultBufferSize)
-        : base(stream, bufferSize: bufferSize)
+    public ForwardOnlyStream(Stream stream, int? bufferSize = null)
+        : base(stream, bufferSize: bufferSize ?? Constants.BufferSize)
     {
         this.stream = stream;
 #if DEBUG_STREAMS

tests/SharpCompress.Test/Mocks/ThrowOnFlushStream.cs

@@ -0,0 +1,73 @@
+using System;
+using System.IO;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace SharpCompress.Test.Mocks;
+
+/// <summary>
+/// A stream wrapper that throws NotSupportedException on Flush() calls.
+/// This is used to test that archive iteration handles streams that don't support flushing.
+/// </summary>
+public class ThrowOnFlushStream : Stream
+{
+    private readonly Stream inner;
+
+    public ThrowOnFlushStream(Stream inner)
+    {
+        this.inner = inner;
+    }
+
+    public override bool CanRead => inner.CanRead;
+
+    public override bool CanSeek => false;
+
+    public override bool CanWrite => false;
+
+    public override long Length => throw new NotSupportedException();
+
+    public override long Position
+    {
+        get => throw new NotSupportedException();
+        set => throw new NotSupportedException();
+    }
+
+    public override void Flush() => throw new NotSupportedException("Flush not supported");
+
+    public override Task FlushAsync(CancellationToken cancellationToken) =>
+        throw new NotSupportedException("FlushAsync not supported");
+
+    public override int Read(byte[] buffer, int offset, int count) =>
+        inner.Read(buffer, offset, count);
+
+    public override Task<int> ReadAsync(
+        byte[] buffer,
+        int offset,
+        int count,
+        CancellationToken cancellationToken
+    ) => inner.ReadAsync(buffer, offset, count, cancellationToken);
+
+#if !NETFRAMEWORK && !NETSTANDARD2_0
+    public override ValueTask<int> ReadAsync(
+        Memory<byte> buffer,
+        CancellationToken cancellationToken = default
+    ) => inner.ReadAsync(buffer, cancellationToken);
+#endif
+
+    public override long Seek(long offset, SeekOrigin origin) => throw new NotSupportedException();
+
+    public override void SetLength(long value) => throw new NotSupportedException();
+
+    public override void Write(byte[] buffer, int offset, int count) =>
+        throw new NotSupportedException();
+
+    protected override void Dispose(bool disposing)
+    {
+        if (disposing)
+        {
+            inner.Dispose();
+        }
+
+        base.Dispose(disposing);
+    }
+}

tests/SharpCompress.Test/Mocks/TruncatedStream.cs

@@ -0,0 +1,65 @@
+using System;
+using System.IO;
+
+namespace SharpCompress.Test.Mocks;
+
+/// <summary>
+/// A stream wrapper that truncates the underlying stream after reading a specified number of bytes.
+/// Used for testing error handling when streams end prematurely.
+/// </summary>
+public class TruncatedStream : Stream
+{
+    private readonly Stream baseStream;
+    private readonly long truncateAfterBytes;
+    private long bytesRead;
+
+    public TruncatedStream(Stream baseStream, long truncateAfterBytes)
+    {
+        this.baseStream = baseStream ?? throw new ArgumentNullException(nameof(baseStream));
+        this.truncateAfterBytes = truncateAfterBytes;
+        bytesRead = 0;
+    }
+
+    public override bool CanRead => baseStream.CanRead;
+    public override bool CanSeek => baseStream.CanSeek;
+    public override bool CanWrite => false;
+    public override long Length => baseStream.Length;
+
+    public override long Position
+    {
+        get => baseStream.Position;
+        set => baseStream.Position = value;
+    }
+
+    public override int Read(byte[] buffer, int offset, int count)
+    {
+        if (bytesRead >= truncateAfterBytes)
+        {
+            // Simulate premature end of stream
+            return 0;
+        }
+
+        var maxBytesToRead = (int)Math.Min(count, truncateAfterBytes - bytesRead);
+        var actualBytesRead = baseStream.Read(buffer, offset, maxBytesToRead);
+        bytesRead += actualBytesRead;
+        return actualBytesRead;
+    }
+
+    public override long Seek(long offset, SeekOrigin origin) => baseStream.Seek(offset, origin);
+
+    public override void SetLength(long value) => throw new NotSupportedException();
+
+    public override void Write(byte[] buffer, int offset, int count) =>
+        throw new NotSupportedException();
+
+    public override void Flush() => baseStream.Flush();
+
+    protected override void Dispose(bool disposing)
+    {
+        if (disposing)
+        {
+            baseStream?.Dispose();
+        }
+        base.Dispose(disposing);
+    }
+}

tests/SharpCompress.Test/Rar/RarArchiveTests.cs

@@ -1,3 +1,4 @@
+using System;
 using System.IO;
 using System.Linq;
 using SharpCompress.Archives;
@@ -5,6 +6,7 @@ using SharpCompress.Archives.Rar;
 using SharpCompress.Common;
 using SharpCompress.Compressors.LZMA.Utilites;
 using SharpCompress.Readers;
+using SharpCompress.Test.Mocks;
 using Xunit;
 
 namespace SharpCompress.Test.Rar;
@@ -642,4 +644,110 @@ public class RarArchiveTests : ArchiveTests
         );
         Assert.True(passwordProtectedFilesArchive.IsEncrypted);
     }
+
+    /// <summary>
+    /// Test for issue: InvalidOperationException when extracting RAR files.
+    /// This test verifies the fix for the validation logic that was changed from
+    /// (_position != Length) to (_position &lt; Length).
+    /// The old logic would throw an exception when position exceeded expected length,
+    /// but the new logic only throws when decompression ends prematurely (position &lt; expected).
+    /// </summary>
+    [Fact]
+    public void Rar_StreamValidation_OnlyThrowsOnPrematureEnd()
+    {
+        // Test normal extraction - should NOT throw InvalidOperationException
+        // even if actual decompressed size differs from header
+        var testFiles = new[] { "Rar.rar", "Rar5.rar", "Rar4.rar", "Rar2.rar" };
+
+        foreach (var testFile in testFiles)
+        {
+            using var stream = File.OpenRead(Path.Combine(TEST_ARCHIVES_PATH, testFile));
+            using var archive = RarArchive.Open(stream);
+
+            // Extract all entries and read them completely
+            foreach (var entry in archive.Entries.Where(e => !e.IsDirectory))
+            {
+                using var entryStream = entry.OpenEntryStream();
+                using var ms = new MemoryStream();
+
+                // This should complete without throwing InvalidOperationException
+                // The fix ensures we only throw when position &lt; expected length, not when position >= expected
+                entryStream.CopyTo(ms);
+
+                // Verify we read some data
+                Assert.True(
+                    ms.Length > 0,
+                    $"Failed to extract data from {entry.Key} in {testFile}"
+                );
+            }
+        }
+    }
+
+    /// <summary>
+    /// Negative test case: Verifies that InvalidOperationException IS thrown when
+    /// a RAR stream ends prematurely (position &lt; expected length).
+    /// This tests the validation condition (_position &lt; Length) works correctly.
+    /// </summary>
+    [Fact]
+    public void Rar_StreamValidation_ThrowsOnTruncatedStream()
+    {
+        // This test verifies the exception is thrown when decompression ends prematurely
+        // by using a truncated stream that stops reading after a small number of bytes
+        var testFile = "Rar.rar";
+        using var fileStream = File.OpenRead(Path.Combine(TEST_ARCHIVES_PATH, testFile));
+
+        // Wrap the file stream with a truncated stream that will stop reading early
+        // This simulates a corrupted or truncated RAR file
+        using var truncatedStream = new TruncatedStream(fileStream, 1000);
+
+        // Opening the archive should work, but extracting should throw
+        // when we try to read beyond the truncated data
+        var exception = Assert.Throws<InvalidOperationException>(() =>
+        {
+            using var archive = RarArchive.Open(truncatedStream);
+            foreach (var entry in archive.Entries.Where(e => !e.IsDirectory))
+            {
+                using var entryStream = entry.OpenEntryStream();
+                using var ms = new MemoryStream();
+                // This should throw InvalidOperationException when it can't read all expected bytes
+                entryStream.CopyTo(ms);
+            }
+        });
+
+        // Verify the exception message matches our expectation
+        Assert.Contains("unpacked file size does not match header", exception.Message);
+    }
+
+    /// <summary>
+    /// Test case for malformed RAR archives that previously caused infinite loops.
+    /// This test verifies that attempting to read entries from a potentially malformed
+    /// 512-byte RAR archive throws an InvalidOperationException instead of looping infinitely.
+    /// See: https://github.com/adamhathcock/sharpcompress/issues/1176
+    /// </summary>
+    [Fact]
+    public void Rar_MalformedArchive_NoInfiniteLoop()
+    {
+        var testFile = "Rar.malformed_512byte.rar";
+        var readerOptions = new ReaderOptions { LookForHeader = true };
+
+        // This should throw InvalidOperationException, not hang in an infinite loop
+        var exception = Assert.Throws<InvalidOperationException>(() =>
+        {
+            using var fileStream = File.Open(
+                Path.Combine(TEST_ARCHIVES_PATH, testFile),
+                FileMode.Open
+            );
+            using var archive = RarArchive.Open(fileStream, readerOptions);
+
+            // Attempting to enumerate entries should throw an exception
+            // instead of looping infinitely
+            foreach (var entry in archive.Entries.Where(e => !e.IsDirectory))
+            {
+                // This line should not be reached due to the exception
+            }
+        });
+
+        // Verify that the exception is related to seeking beyond available data
+        Assert.Contains("Cannot seek to position", exception.Message);
+    }
 }

tests/SharpCompress.Test/ReaderTests.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using SharpCompress.Common;
@@ -220,4 +221,26 @@ public abstract class ReaderTests : TestBase
             Assert.Equal(expected.Pop(), reader.Entry.Key);
         }
     }
+
+    protected void DoMultiReader(
+        string[] archives,
+        Func<IEnumerable<Stream>, IDisposable> readerFactory
+    )
+    {
+        using var reader = readerFactory(
+            archives.Select(s => Path.Combine(TEST_ARCHIVES_PATH, s)).Select(File.OpenRead)
+        );
+
+        dynamic dynReader = reader;
+
+        while (dynReader.MoveToNextEntry())
+        {
+            dynReader.WriteEntryToDirectory(
+                SCRATCH_FILES_PATH,
+                new ExtractionOptions { ExtractFullPath = true, Overwrite = true }
+            );
+        }
+
+        VerifyFiles();
+    }
 }

tests/SharpCompress.Test/SevenZip/SevenZipArchiveAsyncTests.cs

@@ -0,0 +1,139 @@
+using System.IO;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using SharpCompress.Archives;
+using SharpCompress.Common;
+using Xunit;
+
+namespace SharpCompress.Test.SevenZip;
+
+#if !NETFRAMEWORK
+public class SevenZipArchiveAsyncTests : ArchiveTests
+{
+    [Fact]
+    public async Task SevenZipArchive_LZMA_AsyncStreamExtraction()
+    {
+        var testArchive = Path.Combine(TEST_ARCHIVES_PATH, "7Zip.LZMA.7z");
+        using var stream = File.OpenRead(testArchive);
+        using var archive = ArchiveFactory.Open(stream);
+
+        foreach (var entry in archive.Entries.Where(entry => !entry.IsDirectory))
+        {
+            var targetPath = Path.Combine(SCRATCH_FILES_PATH, entry.Key!);
+            var targetDir = Path.GetDirectoryName(targetPath);
+
+            if (!string.IsNullOrEmpty(targetDir) && !Directory.Exists(targetDir))
+            {
+                Directory.CreateDirectory(targetDir);
+            }
+
+            using var sourceStream = await entry.OpenEntryStreamAsync(CancellationToken.None);
+            await using var targetStream = File.Create(targetPath);
+            await sourceStream.CopyToAsync(targetStream, CancellationToken.None);
+        }
+
+        VerifyFiles();
+    }
+
+    [Fact]
+    public async Task SevenZipArchive_LZMA2_AsyncStreamExtraction()
+    {
+        var testArchive = Path.Combine(TEST_ARCHIVES_PATH, "7Zip.LZMA2.7z");
+        using var stream = File.OpenRead(testArchive);
+        using var archive = ArchiveFactory.Open(stream);
+
+        foreach (var entry in archive.Entries.Where(entry => !entry.IsDirectory))
+        {
+            var targetPath = Path.Combine(SCRATCH_FILES_PATH, entry.Key!);
+            var targetDir = Path.GetDirectoryName(targetPath);
+
+            if (!string.IsNullOrEmpty(targetDir) && !Directory.Exists(targetDir))
+            {
+                Directory.CreateDirectory(targetDir);
+            }
+
+            using var sourceStream = await entry.OpenEntryStreamAsync(CancellationToken.None);
+            await using var targetStream = File.Create(targetPath);
+            await sourceStream.CopyToAsync(targetStream, CancellationToken.None);
+        }
+
+        VerifyFiles();
+    }
+
+    [Fact]
+    public async Task SevenZipArchive_Solid_AsyncStreamExtraction()
+    {
+        var testArchive = Path.Combine(TEST_ARCHIVES_PATH, "7Zip.solid.7z");
+        using var stream = File.OpenRead(testArchive);
+        using var archive = ArchiveFactory.Open(stream);
+
+        foreach (var entry in archive.Entries.Where(entry => !entry.IsDirectory))
+        {
+            var targetPath = Path.Combine(SCRATCH_FILES_PATH, entry.Key!);
+            var targetDir = Path.GetDirectoryName(targetPath);
+
+            if (!string.IsNullOrEmpty(targetDir) && !Directory.Exists(targetDir))
+            {
+                Directory.CreateDirectory(targetDir);
+            }
+
+            using var sourceStream = await entry.OpenEntryStreamAsync(CancellationToken.None);
+            await using var targetStream = File.Create(targetPath);
+            await sourceStream.CopyToAsync(targetStream, CancellationToken.None);
+        }
+
+        VerifyFiles();
+    }
+
+    [Fact]
+    public async Task SevenZipArchive_BZip2_AsyncStreamExtraction()
+    {
+        var testArchive = Path.Combine(TEST_ARCHIVES_PATH, "7Zip.BZip2.7z");
+        using var stream = File.OpenRead(testArchive);
+        using var archive = ArchiveFactory.Open(stream);
+
+        foreach (var entry in archive.Entries.Where(entry => !entry.IsDirectory))
+        {
+            var targetPath = Path.Combine(SCRATCH_FILES_PATH, entry.Key!);
+            var targetDir = Path.GetDirectoryName(targetPath);
+
+            if (!string.IsNullOrEmpty(targetDir) && !Directory.Exists(targetDir))
+            {
+                Directory.CreateDirectory(targetDir);
+            }
+
+            using var sourceStream = await entry.OpenEntryStreamAsync(CancellationToken.None);
+            await using var targetStream = File.Create(targetPath);
+            await sourceStream.CopyToAsync(targetStream, CancellationToken.None);
+        }
+
+        VerifyFiles();
+    }
+
+    [Fact]
+    public async Task SevenZipArchive_PPMd_AsyncStreamExtraction()
+    {
+        var testArchive = Path.Combine(TEST_ARCHIVES_PATH, "7Zip.PPMd.7z");
+        using var stream = File.OpenRead(testArchive);
+        using var archive = ArchiveFactory.Open(stream);
+
+        foreach (var entry in archive.Entries.Where(entry => !entry.IsDirectory))
+        {
+            var targetPath = Path.Combine(SCRATCH_FILES_PATH, entry.Key!);
+            var targetDir = Path.GetDirectoryName(targetPath);
+
+            if (!string.IsNullOrEmpty(targetDir) && !Directory.Exists(targetDir))
+            {
+                Directory.CreateDirectory(targetDir);
+            }
+
+            using var sourceStream = await entry.OpenEntryStreamAsync(CancellationToken.None);
+            await using var targetStream = File.Create(targetPath);
+            await sourceStream.CopyToAsync(targetStream, CancellationToken.None);
+        }
+
+        VerifyFiles();
+    }
+}
+#endif

tests/SharpCompress.Test/SevenZip/SevenZipArchiveTests.cs

@@ -251,4 +251,98 @@ public class SevenZipArchiveTests : ArchiveTests
         );
         Assert.False(nonSolidArchive.IsSolid);
     }
+
+    [Fact]
+    public void SevenZipArchive_Solid_ExtractAllEntries_Contiguous()
+    {
+        // This test verifies that solid archives iterate entries as contiguous streams
+        // rather than recreating the decompression stream for each entry
+        var testArchive = Path.Combine(TEST_ARCHIVES_PATH, "7Zip.solid.7z");
+        using var archive = SevenZipArchive.Open(testArchive);
+        Assert.True(archive.IsSolid);
+
+        using var reader = archive.ExtractAllEntries();
+        while (reader.MoveToNextEntry())
+        {
+            if (!reader.Entry.IsDirectory)
+            {
+                reader.WriteEntryToDirectory(
+                    SCRATCH_FILES_PATH,
+                    new ExtractionOptions { ExtractFullPath = true, Overwrite = true }
+                );
+            }
+        }
+
+        VerifyFiles();
+    }
+
+    [Fact]
+    public void SevenZipArchive_Solid_VerifyStreamReuse()
+    {
+        // This test verifies that the folder stream is reused within each folder
+        // and not recreated for each entry in solid archives
+        var testArchive = Path.Combine(TEST_ARCHIVES_PATH, "7Zip.solid.7z");
+        using var archive = SevenZipArchive.Open(testArchive);
+        Assert.True(archive.IsSolid);
+
+        using var reader = archive.ExtractAllEntries();
+
+        var sevenZipReader = Assert.IsType<SevenZipArchive.SevenZipReader>(reader);
+        sevenZipReader.DiagnosticsEnabled = true;
+
+        Stream? currentFolderStreamInstance = null;
+        object? currentFolder = null;
+        var entryCount = 0;
+        var entriesInCurrentFolder = 0;
+        var streamRecreationsWithinFolder = 0;
+
+        while (reader.MoveToNextEntry())
+        {
+            if (!reader.Entry.IsDirectory)
+            {
+                // Extract the entry to trigger GetEntryStream
+                using var entryStream = reader.OpenEntryStream();
+                var buffer = new byte[4096];
+                while (entryStream.Read(buffer, 0, buffer.Length) > 0)
+                {
+                    // Read the stream to completion
+                }
+
+                entryCount++;
+
+                var folderStream = sevenZipReader.DiagnosticsCurrentFolderStream;
+                var folder = sevenZipReader.DiagnosticsCurrentFolder;
+
+                Assert.NotNull(folderStream); // Folder stream should exist
+
+                // Check if we're in a new folder
+                if (currentFolder == null || !ReferenceEquals(currentFolder, folder))
+                {
+                    // Starting a new folder
+                    currentFolder = folder;
+                    currentFolderStreamInstance = folderStream;
+                    entriesInCurrentFolder = 1;
+                }
+                else
+                {
+                    // Same folder - verify stream wasn't recreated
+                    entriesInCurrentFolder++;
+
+                    if (!ReferenceEquals(currentFolderStreamInstance, folderStream))
+                    {
+                        // Stream was recreated within the same folder - this is the bug we're testing for!
+                        streamRecreationsWithinFolder++;
+                    }
+
+                    currentFolderStreamInstance = folderStream;
+                }
+            }
+        }
+
+        // Verify we actually tested multiple entries
+        Assert.True(entryCount > 1, "Test should have multiple entries to verify stream reuse");
+
+        // The critical check: within a single folder, the stream should NEVER be recreated
+        Assert.Equal(0, streamRecreationsWithinFolder); // Folder stream should remain the same for all entries in the same folder
+    }
 }

tests/SharpCompress.Test/SharpCompress.Test.csproj

@@ -6,8 +6,8 @@
     <AssemblyOriginatorKeyFile>SharpCompress.Test.snk</AssemblyOriginatorKeyFile>
     <SignAssembly>true</SignAssembly>
   </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(TargetFramework)|$(Platform)'=='Debug|net10.0|AnyCPU'">
-    <DefineConstants>$(DefineConstants);DEBUG_STREAMS</DefineConstants>
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'net48' ">
+    <DefineConstants>$(DefineConstants);LEGACY_DOTNET</DefineConstants>
   </PropertyGroup>
   <PropertyGroup Condition="$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Windows)))">
     <DefineConstants>$(DefineConstants);WINDOWS</DefineConstants>
@@ -23,9 +23,8 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" />
     <PackageReference Include="xunit.runner.visualstudio" />
     <PackageReference Include="xunit" />
-    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" PrivateAssets="All" />
   </ItemGroup>
-  <ItemGroup Condition=" '$(VersionlessImplicitFrameworkDefine)' != 'NETFRAMEWORK' ">
+  <ItemGroup Condition="$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Linux)))">
     <PackageReference Include="Mono.Posix.NETStandard" />
   </ItemGroup>
 </Project>

tests/SharpCompress.Test/Streams/DisposalTests.cs

@@ -0,0 +1,202 @@
+using System;
+using System.IO;
+using SharpCompress.Common;
+using SharpCompress.Compressors;
+using SharpCompress.Compressors.BZip2;
+using SharpCompress.Compressors.Deflate;
+using SharpCompress.Compressors.LZMA;
+using SharpCompress.Compressors.Lzw;
+using SharpCompress.Compressors.PPMd;
+using SharpCompress.Compressors.Reduce;
+using SharpCompress.Compressors.ZStandard;
+using SharpCompress.IO;
+using SharpCompress.Readers;
+using SharpCompress.Test.Mocks;
+using Xunit;
+
+namespace SharpCompress.Test.Streams;
+
+public class DisposalTests
+{
+    private void VerifyStreamDisposal(
+        Func<Stream, bool, Stream> createStream,
+        bool supportsLeaveOpen = true
+    )
+    {
+        // 1. Test Dispose behavior (should dispose inner stream)
+        {
+            using var innerStream = new TestStream(new MemoryStream());
+            // createStream(stream, leaveOpen: false)
+            var stream = createStream(innerStream, false);
+            stream.Dispose();
+
+            // Some streams might not support disposal of inner stream (e.g. PpmdStream apparently)
+            // But for those that satisfy the pattern, we assert true.
+            Assert.True(
+                innerStream.IsDisposed,
+                "Stream should have been disposed when leaveOpen=false"
+            );
+        }
+
+        // 2. Test LeaveOpen behavior (should NOT dispose inner stream)
+        if (supportsLeaveOpen)
+        {
+            using var innerStream = new TestStream(new MemoryStream());
+            // createStream(stream, leaveOpen: true)
+            var stream = createStream(innerStream, true);
+            stream.Dispose();
+            Assert.False(
+                innerStream.IsDisposed,
+                "Stream should NOT have been disposed when leaveOpen=true"
+            );
+        }
+    }
+
+    private void VerifyAlwaysDispose(Func<Stream, Stream> createStream)
+    {
+        using var innerStream = new TestStream(new MemoryStream());
+        var stream = createStream(innerStream);
+        stream.Dispose();
+        Assert.True(innerStream.IsDisposed, "Stream should have been disposed (AlwaysDispose)");
+    }
+
+    private void VerifyNeverDispose(Func<Stream, Stream> createStream)
+    {
+        using var innerStream = new TestStream(new MemoryStream());
+        var stream = createStream(innerStream);
+        stream.Dispose();
+        Assert.False(innerStream.IsDisposed, "Stream should NOT have been disposed (NeverDispose)");
+    }
+
+    [Fact]
+    public void SourceStream_Disposal()
+    {
+        VerifyStreamDisposal(
+            (stream, leaveOpen) =>
+                new SourceStream(
+                    stream,
+                    i => null,
+                    new ReaderOptions { LeaveStreamOpen = leaveOpen }
+                )
+        );
+    }
+
+    [Fact]
+    public void ProgressReportingStream_Disposal()
+    {
+        VerifyStreamDisposal(
+            (stream, leaveOpen) =>
+                new ProgressReportingStream(
+                    stream,
+                    new Progress<ProgressReport>(),
+                    "",
+                    0,
+                    leaveOpen: leaveOpen
+                )
+        );
+    }
+
+    [Fact]
+    public void DataDescriptorStream_Disposal()
+    {
+        // DataDescriptorStream DOES dispose inner stream
+        VerifyAlwaysDispose(stream => new DataDescriptorStream(stream));
+    }
+
+    [Fact]
+    public void DeflateStream_Disposal()
+    {
+        // DeflateStream in SharpCompress always disposes inner stream
+        VerifyAlwaysDispose(stream => new DeflateStream(stream, CompressionMode.Compress));
+    }
+
+    [Fact]
+    public void GZipStream_Disposal()
+    {
+        // GZipStream in SharpCompress always disposes inner stream
+        VerifyAlwaysDispose(stream => new GZipStream(stream, CompressionMode.Compress));
+    }
+
+    [Fact]
+    public void LzwStream_Disposal()
+    {
+        VerifyStreamDisposal(
+            (stream, leaveOpen) =>
+            {
+                var lzw = new LzwStream(stream);
+                lzw.IsStreamOwner = !leaveOpen;
+                return lzw;
+            }
+        );
+    }
+
+    [Fact]
+    public void PpmdStream_Disposal()
+    {
+        // PpmdStream seems to not dispose inner stream based on code analysis
+        // It takes PpmdProperties which we need to mock or create.
+        var props = new PpmdProperties();
+        VerifyNeverDispose(stream => new PpmdStream(props, stream, false));
+    }
+
+    [Fact]
+    public void LzmaStream_Disposal()
+    {
+        // LzmaStream always disposes inner stream
+        // Need to provide valid properties to avoid crash in constructor (invalid window size)
+        // 5 bytes: 1 byte properties + 4 bytes dictionary size (little endian)
+        // Dictionary size = 1024 (0x400) -> 00 04 00 00
+        var lzmaProps = new byte[] { 0, 0, 4, 0, 0 };
+        VerifyAlwaysDispose(stream => new LzmaStream(lzmaProps, stream));
+    }
+
+    [Fact]
+    public void LZipStream_Disposal()
+    {
+        // LZipStream now supports leaveOpen parameter
+        // Use Compress mode to avoid need for valid input header
+        VerifyStreamDisposal(
+            (stream, leaveOpen) => new LZipStream(stream, CompressionMode.Compress, leaveOpen)
+        );
+    }
+
+    [Fact]
+    public void BZip2Stream_Disposal()
+    {
+        // BZip2Stream now supports leaveOpen parameter
+        VerifyStreamDisposal(
+            (stream, leaveOpen) =>
+                new BZip2Stream(stream, CompressionMode.Compress, false, leaveOpen)
+        );
+    }
+
+    [Fact]
+    public void ReduceStream_Disposal()
+    {
+        // ReduceStream does not dispose inner stream
+        VerifyNeverDispose(stream => new ReduceStream(stream, 0, 0, 1));
+    }
+
+    [Fact]
+    public void ZStandard_CompressionStream_Disposal()
+    {
+        VerifyStreamDisposal(
+            (stream, leaveOpen) =>
+                new CompressionStream(stream, level: 0, bufferSize: 0, leaveOpen: leaveOpen)
+        );
+    }
+
+    [Fact]
+    public void ZStandard_DecompressionStream_Disposal()
+    {
+        VerifyStreamDisposal(
+            (stream, leaveOpen) =>
+                new DecompressionStream(
+                    stream,
+                    bufferSize: 0,
+                    checkEndOfStream: false,
+                    leaveOpen: leaveOpen
+                )
+        );
+    }
+}

tests/SharpCompress.Test/Streams/LeaveOpenBehaviorTests.cs

@@ -0,0 +1,226 @@
+using System;
+using System.IO;
+using System.Text;
+using SharpCompress.Compressors;
+using SharpCompress.Compressors.BZip2;
+using SharpCompress.Compressors.LZMA;
+using SharpCompress.Test.Mocks;
+using Xunit;
+
+namespace SharpCompress.Test.Streams;
+
+public class LeaveOpenBehaviorTests
+{
+    private static byte[] CreateTestData() =>
+        Encoding.UTF8.GetBytes("The quick brown fox jumps over the lazy dog");
+
+    [Fact]
+    public void BZip2Stream_Compress_LeaveOpen_False()
+    {
+        using var innerStream = new TestStream(new MemoryStream());
+        using (
+            var bzip2 = new BZip2Stream(
+                innerStream,
+                CompressionMode.Compress,
+                false,
+                leaveOpen: false
+            )
+        )
+        {
+            bzip2.Write(CreateTestData(), 0, CreateTestData().Length);
+            bzip2.Finish();
+        }
+
+        Assert.True(innerStream.IsDisposed, "Inner stream should be disposed when leaveOpen=false");
+    }
+
+    [Fact]
+    public void BZip2Stream_Compress_LeaveOpen_True()
+    {
+        using var innerStream = new TestStream(new MemoryStream());
+        byte[] compressed;
+        using (
+            var bzip2 = new BZip2Stream(
+                innerStream,
+                CompressionMode.Compress,
+                false,
+                leaveOpen: true
+            )
+        )
+        {
+            bzip2.Write(CreateTestData(), 0, CreateTestData().Length);
+            bzip2.Finish();
+        }
+
+        Assert.False(
+            innerStream.IsDisposed,
+            "Inner stream should NOT be disposed when leaveOpen=true"
+        );
+
+        // Should be able to read the compressed data
+        innerStream.Position = 0;
+        compressed = new byte[innerStream.Length];
+        innerStream.Read(compressed, 0, compressed.Length);
+        Assert.True(compressed.Length > 0);
+    }
+
+    [Fact]
+    public void BZip2Stream_Decompress_LeaveOpen_False()
+    {
+        // First compress some data
+        var memStream = new MemoryStream();
+        using (var bzip2 = new BZip2Stream(memStream, CompressionMode.Compress, false, true))
+        {
+            bzip2.Write(CreateTestData(), 0, CreateTestData().Length);
+            bzip2.Finish();
+        }
+
+        memStream.Position = 0;
+        using var innerStream = new TestStream(memStream);
+        var decompressed = new byte[CreateTestData().Length];
+
+        using (
+            var bzip2 = new BZip2Stream(
+                innerStream,
+                CompressionMode.Decompress,
+                false,
+                leaveOpen: false
+            )
+        )
+        {
+            bzip2.Read(decompressed, 0, decompressed.Length);
+        }
+
+        Assert.True(innerStream.IsDisposed, "Inner stream should be disposed when leaveOpen=false");
+        Assert.Equal(CreateTestData(), decompressed);
+    }
+
+    [Fact]
+    public void BZip2Stream_Decompress_LeaveOpen_True()
+    {
+        // First compress some data
+        var memStream = new MemoryStream();
+        using (var bzip2 = new BZip2Stream(memStream, CompressionMode.Compress, false, true))
+        {
+            bzip2.Write(CreateTestData(), 0, CreateTestData().Length);
+            bzip2.Finish();
+        }
+
+        memStream.Position = 0;
+        using var innerStream = new TestStream(memStream);
+        var decompressed = new byte[CreateTestData().Length];
+
+        using (
+            var bzip2 = new BZip2Stream(
+                innerStream,
+                CompressionMode.Decompress,
+                false,
+                leaveOpen: true
+            )
+        )
+        {
+            bzip2.Read(decompressed, 0, decompressed.Length);
+        }
+
+        Assert.False(
+            innerStream.IsDisposed,
+            "Inner stream should NOT be disposed when leaveOpen=true"
+        );
+        Assert.Equal(CreateTestData(), decompressed);
+
+        // Should still be able to use the stream
+        innerStream.Position = 0;
+        Assert.True(innerStream.CanRead);
+    }
+
+    [Fact]
+    public void LZipStream_Compress_LeaveOpen_False()
+    {
+        using var innerStream = new TestStream(new MemoryStream());
+        using (var lzip = new LZipStream(innerStream, CompressionMode.Compress, leaveOpen: false))
+        {
+            lzip.Write(CreateTestData(), 0, CreateTestData().Length);
+            lzip.Finish();
+        }
+
+        Assert.True(innerStream.IsDisposed, "Inner stream should be disposed when leaveOpen=false");
+    }
+
+    [Fact]
+    public void LZipStream_Compress_LeaveOpen_True()
+    {
+        using var innerStream = new TestStream(new MemoryStream());
+        byte[] compressed;
+        using (var lzip = new LZipStream(innerStream, CompressionMode.Compress, leaveOpen: true))
+        {
+            lzip.Write(CreateTestData(), 0, CreateTestData().Length);
+            lzip.Finish();
+        }
+
+        Assert.False(
+            innerStream.IsDisposed,
+            "Inner stream should NOT be disposed when leaveOpen=true"
+        );
+
+        // Should be able to read the compressed data
+        innerStream.Position = 0;
+        compressed = new byte[innerStream.Length];
+        innerStream.Read(compressed, 0, compressed.Length);
+        Assert.True(compressed.Length > 0);
+    }
+
+    [Fact]
+    public void LZipStream_Decompress_LeaveOpen_False()
+    {
+        // First compress some data
+        var memStream = new MemoryStream();
+        using (var lzip = new LZipStream(memStream, CompressionMode.Compress, true))
+        {
+            lzip.Write(CreateTestData(), 0, CreateTestData().Length);
+            lzip.Finish();
+        }
+
+        memStream.Position = 0;
+        using var innerStream = new TestStream(memStream);
+        var decompressed = new byte[CreateTestData().Length];
+
+        using (var lzip = new LZipStream(innerStream, CompressionMode.Decompress, leaveOpen: false))
+        {
+            lzip.Read(decompressed, 0, decompressed.Length);
+        }
+
+        Assert.True(innerStream.IsDisposed, "Inner stream should be disposed when leaveOpen=false");
+        Assert.Equal(CreateTestData(), decompressed);
+    }
+
+    [Fact]
+    public void LZipStream_Decompress_LeaveOpen_True()
+    {
+        // First compress some data
+        var memStream = new MemoryStream();
+        using (var lzip = new LZipStream(memStream, CompressionMode.Compress, true))
+        {
+            lzip.Write(CreateTestData(), 0, CreateTestData().Length);
+            lzip.Finish();
+        }
+
+        memStream.Position = 0;
+        using var innerStream = new TestStream(memStream);
+        var decompressed = new byte[CreateTestData().Length];
+
+        using (var lzip = new LZipStream(innerStream, CompressionMode.Decompress, leaveOpen: true))
+        {
+            lzip.Read(decompressed, 0, decompressed.Length);
+        }
+
+        Assert.False(
+            innerStream.IsDisposed,
+            "Inner stream should NOT be disposed when leaveOpen=true"
+        );
+        Assert.Equal(CreateTestData(), decompressed);
+
+        // Should still be able to use the stream
+        innerStream.Position = 0;
+        Assert.True(innerStream.CanRead);
+    }
+}

tests/SharpCompress.Test/Streams/SharpCompressStreamTest.cs

@@ -5,6 +5,7 @@ using System.Linq;
 using System.Text;
 using SharpCompress.Compressors.LZMA;
 using SharpCompress.IO;
+using SharpCompress.Test.Mocks;
 using Xunit;
 
 namespace SharpCompress.Test.Streams;
@@ -64,7 +65,14 @@ public class SharpCompressStreamTests
         {
             createData(ms);
 
-            using (SharpCompressStream scs = new SharpCompressStream(ms, true, false, 0x10000))
+            using (
+                SharpCompressStream scs = new SharpCompressStream(
+                    new ForwardOnlyStream(ms),
+                    true,
+                    false,
+                    0x10000
+                )
+            )
             {
                 IStreamStack stack = (IStreamStack)scs;
 
@@ -89,4 +97,25 @@ public class SharpCompressStreamTests
             }
         }
     }
+
+    [Fact]
+    public void BufferedSubStream_DoubleDispose_DoesNotCorruptArrayPool()
+    {
+        // This test verifies that calling Dispose multiple times on BufferedSubStream
+        // doesn't return the same array to the pool twice, which would cause pool corruption
+        byte[] data = new byte[0x10000];
+        using (MemoryStream ms = new MemoryStream(data))
+        {
+            var stream = new BufferedSubStream(ms, 0, data.Length);
+
+            // First disposal
+            stream.Dispose();
+
+            // Second disposal should not throw or corrupt the pool
+            stream.Dispose();
+        }
+
+        // If we got here without an exception, the test passed
+        Assert.True(true);
+    }
 }

tests/SharpCompress.Test/Zip/ZipReaderAsyncTests.cs

@@ -251,4 +251,106 @@ public class ZipReaderAsyncTests : ReaderTests
         }
         Assert.Equal(8, count);
     }
+
+    [Fact]
+    public async ValueTask EntryStream_Dispose_DoesNotThrow_OnNonSeekableStream_Deflate_Async()
+    {
+        // Since version 0.41.0: EntryStream.DisposeAsync() should not throw NotSupportedException
+        // when FlushAsync() fails on non-seekable streams (Deflate compression)
+        var path = Path.Combine(TEST_ARCHIVES_PATH, "Zip.deflate.dd.zip");
+        using Stream stream = new ForwardOnlyStream(File.OpenRead(path));
+        using var reader = ReaderFactory.Open(stream);
+
+        // This should not throw, even if internal FlushAsync() fails
+        while (await reader.MoveToNextEntryAsync())
+        {
+            if (!reader.Entry.IsDirectory)
+            {
+#if LEGACY_DOTNET
+                using var entryStream = await reader.OpenEntryStreamAsync();
+#else
+                await using var entryStream = await reader.OpenEntryStreamAsync();
+#endif
+                // Read some data
+                var buffer = new byte[1024];
+                await entryStream.ReadAsync(buffer, 0, buffer.Length);
+                // DisposeAsync should not throw NotSupportedException
+            }
+        }
+    }
+
+    [Fact]
+    public async ValueTask EntryStream_Dispose_DoesNotThrow_OnNonSeekableStream_LZMA_Async()
+    {
+        // Since version 0.41.0: EntryStream.DisposeAsync() should not throw NotSupportedException
+        // when FlushAsync() fails on non-seekable streams (LZMA compression)
+        var path = Path.Combine(TEST_ARCHIVES_PATH, "Zip.lzma.dd.zip");
+        using Stream stream = new ForwardOnlyStream(File.OpenRead(path));
+        using var reader = ReaderFactory.Open(stream);
+
+        // This should not throw, even if internal FlushAsync() fails
+        while (await reader.MoveToNextEntryAsync())
+        {
+            if (!reader.Entry.IsDirectory)
+            {
+#if LEGACY_DOTNET
+                using var entryStream = await reader.OpenEntryStreamAsync();
+#else
+                await using var entryStream = await reader.OpenEntryStreamAsync();
+#endif
+                // Read some data
+                var buffer = new byte[1024];
+                await entryStream.ReadAsync(buffer, 0, buffer.Length);
+                // DisposeAsync should not throw NotSupportedException
+            }
+        }
+    }
+
+    [Fact]
+    public async ValueTask Archive_Iteration_DoesNotBreak_WhenFlushThrows_Deflate_Async()
+    {
+        // Regression test: since 0.41.0, archive iteration would silently break
+        // when the input stream throws NotSupportedException in Flush().
+        // Only the first entry would be returned, then iteration would stop without exception.
+        var path = Path.Combine(TEST_ARCHIVES_PATH, "Zip.deflate.dd.zip");
+        using var fileStream = File.OpenRead(path);
+        using Stream stream = new ThrowOnFlushStream(fileStream);
+        using var reader = ReaderFactory.Open(stream);
+
+        var count = 0;
+        while (await reader.MoveToNextEntryAsync())
+        {
+            if (!reader.Entry.IsDirectory)
+            {
+                count++;
+            }
+        }
+
+        // Should iterate through all entries, not just the first one
+        Assert.True(count > 1, $"Expected more than 1 entry, but got {count}");
+    }
+
+    [Fact]
+    public async ValueTask Archive_Iteration_DoesNotBreak_WhenFlushThrows_LZMA_Async()
+    {
+        // Regression test: since 0.41.0, archive iteration would silently break
+        // when the input stream throws NotSupportedException in Flush().
+        // Only the first entry would be returned, then iteration would stop without exception.
+        var path = Path.Combine(TEST_ARCHIVES_PATH, "Zip.lzma.dd.zip");
+        using var fileStream = File.OpenRead(path);
+        using Stream stream = new ThrowOnFlushStream(fileStream);
+        using var reader = ReaderFactory.Open(stream);
+
+        var count = 0;
+        while (await reader.MoveToNextEntryAsync())
+        {
+            if (!reader.Entry.IsDirectory)
+            {
+                count++;
+            }
+        }
+
+        // Should iterate through all entries, not just the first one
+        Assert.True(count > 1, $"Expected more than 1 entry, but got {count}");
+    }
 }

tests/SharpCompress.Test/Zip/ZipReaderTests.cs

@@ -436,4 +436,98 @@ public class ZipReaderTests : ReaderTests
             Assert.Equal(archiveKeys.OrderBy(k => k), readerKeys.OrderBy(k => k));
         }
     }
+
+    [Fact]
+    public void EntryStream_Dispose_DoesNotThrow_OnNonSeekableStream_Deflate()
+    {
+        // Since version 0.41.0: EntryStream.Dispose() should not throw NotSupportedException
+        // when Flush() fails on non-seekable streams (Deflate compression)
+        var path = Path.Combine(TEST_ARCHIVES_PATH, "Zip.deflate.dd.zip");
+        using Stream stream = new ForwardOnlyStream(File.OpenRead(path));
+        using var reader = ReaderFactory.Open(stream);
+
+        // This should not throw, even if internal Flush() fails
+        while (reader.MoveToNextEntry())
+        {
+            if (!reader.Entry.IsDirectory)
+            {
+                using var entryStream = reader.OpenEntryStream();
+                // Read some data
+                var buffer = new byte[1024];
+                entryStream.Read(buffer, 0, buffer.Length);
+                // Dispose should not throw NotSupportedException
+            }
+        }
+    }
+
+    [Fact]
+    public void EntryStream_Dispose_DoesNotThrow_OnNonSeekableStream_LZMA()
+    {
+        // Since version 0.41.0: EntryStream.Dispose() should not throw NotSupportedException
+        // when Flush() fails on non-seekable streams (LZMA compression)
+        var path = Path.Combine(TEST_ARCHIVES_PATH, "Zip.lzma.dd.zip");
+        using Stream stream = new ForwardOnlyStream(File.OpenRead(path));
+        using var reader = ReaderFactory.Open(stream);
+
+        // This should not throw, even if internal Flush() fails
+        while (reader.MoveToNextEntry())
+        {
+            if (!reader.Entry.IsDirectory)
+            {
+                using var entryStream = reader.OpenEntryStream();
+                // Read some data
+                var buffer = new byte[1024];
+                entryStream.Read(buffer, 0, buffer.Length);
+                // Dispose should not throw NotSupportedException
+            }
+        }
+    }
+
+    [Fact]
+    public void Archive_Iteration_DoesNotBreak_WhenFlushThrows_Deflate()
+    {
+        // Regression test: since 0.41.0, archive iteration would silently break
+        // when the input stream throws NotSupportedException in Flush().
+        // Only the first entry would be returned, then iteration would stop without exception.
+        var path = Path.Combine(TEST_ARCHIVES_PATH, "Zip.deflate.dd.zip");
+        using var fileStream = File.OpenRead(path);
+        using Stream stream = new ThrowOnFlushStream(fileStream);
+        using var reader = ReaderFactory.Open(stream);
+
+        var count = 0;
+        while (reader.MoveToNextEntry())
+        {
+            if (!reader.Entry.IsDirectory)
+            {
+                count++;
+            }
+        }
+
+        // Should iterate through all entries, not just the first one
+        Assert.True(count > 1, $"Expected more than 1 entry, but got {count}");
+    }
+
+    [Fact]
+    public void Archive_Iteration_DoesNotBreak_WhenFlushThrows_LZMA()
+    {
+        // Regression test: since 0.41.0, archive iteration would silently break
+        // when the input stream throws NotSupportedException in Flush().
+        // Only the first entry would be returned, then iteration would stop without exception.
+        var path = Path.Combine(TEST_ARCHIVES_PATH, "Zip.lzma.dd.zip");
+        using var fileStream = File.OpenRead(path);
+        using Stream stream = new ThrowOnFlushStream(fileStream);
+        using var reader = ReaderFactory.Open(stream);
+
+        var count = 0;
+        while (reader.MoveToNextEntry())
+        {
+            if (!reader.Entry.IsDirectory)
+            {
+                count++;
+            }
+        }
+
+        // Should iterate through all entries, not just the first one
+        Assert.True(count > 1, $"Expected more than 1 entry, but got {count}");
+    }
 }

tests/SharpCompress.Test/Zip/ZipShortReadTests.cs

@@ -0,0 +1,117 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using SharpCompress.Readers;
+using Xunit;
+
+namespace SharpCompress.Test.Zip;
+
+/// <summary>
+/// Tests for ZIP reading with streams that return short reads.
+/// Reproduces the regression where ZIP parsing fails depending on Stream.Read chunking patterns.
+/// </summary>
+public class ZipShortReadTests : ReaderTests
+{
+    /// <summary>
+    /// A non-seekable stream that returns controlled short reads.
+    /// Simulates real-world network/multipart streams that legally return fewer bytes than requested.
+    /// </summary>
+    private sealed class PatternReadStream : Stream
+    {
+        private readonly MemoryStream _inner;
+        private readonly int _firstReadSize;
+        private readonly int _chunkSize;
+        private bool _firstReadDone;
+
+        public PatternReadStream(byte[] bytes, int firstReadSize, int chunkSize)
+        {
+            _inner = new MemoryStream(bytes, writable: false);
+            _firstReadSize = firstReadSize;
+            _chunkSize = chunkSize;
+        }
+
+        public override int Read(byte[] buffer, int offset, int count)
+        {
+            int limit = !_firstReadDone ? _firstReadSize : _chunkSize;
+            _firstReadDone = true;
+
+            int toRead = Math.Min(count, limit);
+            return _inner.Read(buffer, offset, toRead);
+        }
+
+        public override bool CanRead => true;
+        public override bool CanSeek => false;
+        public override bool CanWrite => false;
+        public override long Length => throw new NotSupportedException();
+        public override long Position
+        {
+            get => throw new NotSupportedException();
+            set => throw new NotSupportedException();
+        }
+
+        public override void Flush() => throw new NotSupportedException();
+
+        public override long Seek(long offset, SeekOrigin origin) =>
+            throw new NotSupportedException();
+
+        public override void SetLength(long value) => throw new NotSupportedException();
+
+        public override void Write(byte[] buffer, int offset, int count) =>
+            throw new NotSupportedException();
+    }
+
+    /// <summary>
+    /// Test that ZIP reading works correctly with short reads on non-seekable streams.
+    /// Uses a test archive and different chunking patterns.
+    /// </summary>
+    [Theory]
+    [InlineData("Zip.deflate.zip", 1000, 4096)]
+    [InlineData("Zip.deflate.zip", 999, 4096)]
+    [InlineData("Zip.deflate.zip", 100, 4096)]
+    [InlineData("Zip.deflate.zip", 50, 512)]
+    [InlineData("Zip.deflate.zip", 1, 1)] // Extreme case: 1 byte at a time
+    [InlineData("Zip.deflate.dd.zip", 1000, 4096)]
+    [InlineData("Zip.deflate.dd.zip", 999, 4096)]
+    [InlineData("Zip.zip64.zip", 3816, 4096)]
+    [InlineData("Zip.zip64.zip", 3815, 4096)] // Similar to the issue pattern
+    public void Zip_Reader_Handles_Short_Reads(string zipFile, int firstReadSize, int chunkSize)
+    {
+        // Use an existing test ZIP file
+        var zipPath = Path.Combine(TEST_ARCHIVES_PATH, zipFile);
+        if (!File.Exists(zipPath))
+        {
+            return; // Skip if file doesn't exist
+        }
+
+        var bytes = File.ReadAllBytes(zipPath);
+
+        // Baseline with MemoryStream (seekable, no short reads)
+        var baseline = ReadEntriesFromStream(new MemoryStream(bytes, writable: false));
+        Assert.NotEmpty(baseline);
+
+        // Non-seekable stream with controlled short read pattern
+        var chunked = ReadEntriesFromStream(new PatternReadStream(bytes, firstReadSize, chunkSize));
+        Assert.Equal(baseline, chunked);
+    }
+
+    private List<string> ReadEntriesFromStream(Stream stream)
+    {
+        var names = new List<string>();
+        using var reader = ReaderFactory.Open(stream, new ReaderOptions { LeaveStreamOpen = true });
+
+        while (reader.MoveToNextEntry())
+        {
+            if (reader.Entry.IsDirectory)
+            {
+                continue;
+            }
+
+            names.Add(reader.Entry.Key!);
+
+            using var entryStream = reader.OpenEntryStream();
+            entryStream.CopyTo(Stream.Null);
+        }
+
+        return names;
+    }
+}

tests/SharpCompress.Test/packages.lock.json

@@ -29,6 +29,16 @@
           "Microsoft.NETFramework.ReferenceAssemblies.net48": "1.0.3"
         }
       },
+      "Microsoft.SourceLink.GitHub": {
+        "type": "Direct",
+        "requested": "[10.0.102, )",
+        "resolved": "10.0.102",
+        "contentHash": "Oxq3RCIJSdtpIU4hLqO7XaDe/Ra3HS9Wi8rJl838SAg6Zu1iQjerA0+xXWBgUFYbgknUGCLOU0T+lzMLkvY9Qg==",
+        "dependencies": {
+          "Microsoft.Build.Tasks.Git": "10.0.102",
+          "Microsoft.SourceLink.Common": "10.0.102"
+        }
+      },
       "Mono.Posix.NETStandard": {
         "type": "Direct",
         "requested": "[1.0.0, )",
@@ -55,6 +65,11 @@
           "Microsoft.TestPlatform.ObjectModel": "17.13.0"
         }
       },
+      "Microsoft.Build.Tasks.Git": {
+        "type": "Transitive",
+        "resolved": "10.0.102",
+        "contentHash": "0i81LYX31U6UiXz4NOLbvc++u+/mVDmOt+PskrM/MygpDxkv9THKQyRUmavBpLK6iBV0abNWnn+CQgSRz//Pwg=="
+      },
       "Microsoft.CodeCoverage": {
         "type": "Transitive",
         "resolved": "18.0.1",
@@ -65,6 +80,11 @@
         "resolved": "1.0.3",
         "contentHash": "zMk4D+9zyiEWByyQ7oPImPN/Jhpj166Ky0Nlla4eXlNL8hI/BtSJsgR8Inldd4NNpIAH3oh8yym0W2DrhXdSLQ=="
       },
+      "Microsoft.SourceLink.Common": {
+        "type": "Transitive",
+        "resolved": "10.0.102",
+        "contentHash": "Mk1IMb9q5tahC2NltxYXFkLBtuBvfBoCQ3pIxYQWfzbCE9o1OB9SsHe0hnNGo7lWgTA/ePbFAJLWu6nLL9K17A=="
+      },
       "Microsoft.TestPlatform.ObjectModel": {
         "type": "Transitive",
         "resolved": "17.13.0",
@@ -222,6 +242,16 @@
           "Microsoft.NETFramework.ReferenceAssemblies.net461": "1.0.3"
         }
       },
+      "Microsoft.SourceLink.GitHub": {
+        "type": "Direct",
+        "requested": "[10.0.102, )",
+        "resolved": "10.0.102",
+        "contentHash": "Oxq3RCIJSdtpIU4hLqO7XaDe/Ra3HS9Wi8rJl838SAg6Zu1iQjerA0+xXWBgUFYbgknUGCLOU0T+lzMLkvY9Qg==",
+        "dependencies": {
+          "Microsoft.Build.Tasks.Git": "10.0.102",
+          "Microsoft.SourceLink.Common": "10.0.102"
+        }
+      },
       "Mono.Posix.NETStandard": {
         "type": "Direct",
         "requested": "[1.0.0, )",
@@ -245,6 +275,11 @@
         "resolved": "3.1.5",
         "contentHash": "tKi7dSTwP4m5m9eXPM2Ime4Kn7xNf4x4zT9sdLO/G4hZVnQCRiMTWoSZqI/pYTVeI27oPPqHBKYI/DjJ9GsYgA=="
       },
+      "Microsoft.Build.Tasks.Git": {
+        "type": "Transitive",
+        "resolved": "10.0.102",
+        "contentHash": "0i81LYX31U6UiXz4NOLbvc++u+/mVDmOt+PskrM/MygpDxkv9THKQyRUmavBpLK6iBV0abNWnn+CQgSRz//Pwg=="
+      },
       "Microsoft.CodeCoverage": {
         "type": "Transitive",
         "resolved": "18.0.1",
@@ -255,6 +290,11 @@
         "resolved": "1.0.3",
         "contentHash": "AmOJZwCqnOCNp6PPcf9joyogScWLtwy0M1WkqfEQ0M9nYwyDD7EX9ZjscKS5iYnyvteX7kzSKFCKt9I9dXA6mA=="
       },
+      "Microsoft.SourceLink.Common": {
+        "type": "Transitive",
+        "resolved": "10.0.102",
+        "contentHash": "Mk1IMb9q5tahC2NltxYXFkLBtuBvfBoCQ3pIxYQWfzbCE9o1OB9SsHe0hnNGo7lWgTA/ePbFAJLWu6nLL9K17A=="
+      },
       "Microsoft.TestPlatform.ObjectModel": {
         "type": "Transitive",
         "resolved": "18.0.1",