diff --git a/DiscImageChef.Filesystems/BTRFS.cs b/DiscImageChef.Filesystems/BTRFS.cs
index 730322009..2e2f58ddf 100644
--- a/DiscImageChef.Filesystems/BTRFS.cs
+++ b/DiscImageChef.Filesystems/BTRFS.cs
@@ -36,12 +36,209 @@
 // ****************************************************************************/
 // //$Id$
 using System;
-namespace DiscImageChef.Filesystems
+using System.Runtime.InteropServices;
+using System.Text;
+using DiscImageChef.Console;
+
+namespace DiscImageChef.Plugins
 {
-    public class BTRFS
+    class BTRFS : Plugin
     {
+        /// <summary>
+        /// BTRFS magic "_BHRfS_M"
+        /// </summary>
+        const ulong magic = 0x4D5F53665248425F;
+
         public BTRFS()
         {
+            Name = "B-tree file system";
+            PluginUUID = new Guid("C904CF15-5222-446B-B7DB-02EAC5D781B3");
+        }
+
+        [StructLayout(LayoutKind.Sequential, Pack = 1)]
+        struct SuperBlock
+        {
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x20)]
+            public byte[] checksum;
+            public Guid uuid;
+            public ulong pba;
+            public ulong flags;
+            public ulong magic;
+            public ulong generation;
+            public ulong root_lba;
+            public ulong chunk_lba;
+            public ulong log_lba;
+            public ulong log_root_transid;
+            public ulong total_bytes;
+            public ulong bytes_used;
+            public ulong root_dir_objectid;
+            public ulong num_devices;
+            public uint sectorsize;
+            public uint nodesize;
+            public uint leafsize;
+            public uint stripesize;
+            public uint n;
+            public ulong chunk_root_generation;
+            public ulong compat_flags;
+            public ulong compat_ro_flags;
+            public ulong incompat_flags;
+            public ushort csum_type;
+            public byte root_level;
+            public byte chunk_root_level;
+            public byte log_root_level;
+            public DevItem dev_item;
+            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 0x100)]
+            public string label;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x100)]
+            public byte[] reserved;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x800)]
+            public byte[] chunkpairs;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x4D5)]
+            public byte[] unused;
+        }
+
+        [StructLayout(LayoutKind.Sequential, Pack = 1)]
+        struct DevItem
+        {
+            public ulong id;
+            public ulong bytes;
+            public ulong used;
+            public uint optimal_align;
+            public uint optimal_width;
+            public uint minimal_size;
+            public ulong type;
+            public ulong generation;
+            public ulong start_offset;
+            public uint dev_group;
+            public byte seek_speed;
+            public byte bandwitdh;
+            public Guid device_uuid;
+            public Guid uuid;
+        }
+
+        public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
+        {
+            if(partitionStart >= imagePlugin.GetSectors())
+                return false;
+
+            ulong sbSectorOff = 0x10000 / imagePlugin.GetSectorSize();
+            uint sbSectorSize = 0x1000 / imagePlugin.GetSectorSize();
+
+            if((sbSectorOff + sbSectorSize) >= imagePlugin.GetSectors())
+                return false;
+
+            byte[] sector = imagePlugin.ReadSectors(sbSectorOff + partitionStart, sbSectorSize);
+            SuperBlock btrfsSb;
+
+            try
+            {
+                GCHandle handle = GCHandle.Alloc(sector, GCHandleType.Pinned);
+                btrfsSb = (SuperBlock)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(SuperBlock));
+                handle.Free();
+            }
+            catch
+            {
+                System.Console.WriteLine("Crash");
+                return false;
+            }
+
+            DicConsole.DebugWriteLine("BTRFS Plugin", "sbSectorOff = {0}", sbSectorOff);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "sbSectorSize = {0}", sbSectorSize);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "partitionStart = {0}", partitionStart);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.magic = 0x{0:X16}", btrfsSb.magic);
+
+            return btrfsSb.magic == magic;
+        }
+
+        public override void GetInformation(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd, out string information)
+        {
+            StringBuilder sbInformation = new StringBuilder();
+            xmlFSType = new Schemas.FileSystemType();
+            information = "";
+
+            ulong sbSectorOff = 0x10000 / imagePlugin.GetSectorSize();
+            uint sbSectorSize = 0x1000 / imagePlugin.GetSectorSize();
+
+            byte[] sector = imagePlugin.ReadSectors(sbSectorOff + partitionStart, sbSectorSize);
+            SuperBlock btrfsSb;
+
+            GCHandle handle = GCHandle.Alloc(sector, GCHandleType.Pinned);
+            btrfsSb = (SuperBlock)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(SuperBlock));
+            handle.Free();
+
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.checksum = {0}", btrfsSb.checksum);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.uuid = {0}", btrfsSb.uuid);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.pba = {0}", btrfsSb.pba);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.flags = {0}", btrfsSb.flags);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.magic = {0}", btrfsSb.magic);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.generation = {0}", btrfsSb.generation);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.root_lba = {0}", btrfsSb.root_lba);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.chunk_lba = {0}", btrfsSb.chunk_lba);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.log_lba = {0}", btrfsSb.log_lba);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.log_root_transid = {0}", btrfsSb.log_root_transid);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.total_bytes = {0}", btrfsSb.total_bytes);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.bytes_used = {0}", btrfsSb.bytes_used);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.root_dir_objectid = {0}", btrfsSb.root_dir_objectid);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.num_devices = {0}", btrfsSb.num_devices);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.sectorsize = {0}", btrfsSb.sectorsize);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.nodesize = {0}", btrfsSb.nodesize);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.leafsize = {0}", btrfsSb.leafsize);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.stripesize = {0}", btrfsSb.stripesize);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.n = {0}", btrfsSb.n);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.chunk_root_generation = {0}", btrfsSb.chunk_root_generation);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.compat_flags = 0x{0:X16}", btrfsSb.compat_flags);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.compat_ro_flags = 0x{0:X16}", btrfsSb.compat_ro_flags);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.incompat_flags = 0x{0:X16}", btrfsSb.incompat_flags);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.csum_type = {0}", btrfsSb.csum_type);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.root_level = {0}", btrfsSb.root_level);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.chunk_root_level = {0}", btrfsSb.chunk_root_level);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.log_root_level = {0}", btrfsSb.log_root_level);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.id = 0x{0:X16}", btrfsSb.dev_item.id);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.bytes = {0}", btrfsSb.dev_item.bytes);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.used = {0}", btrfsSb.dev_item.used);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.optimal_align = {0}", btrfsSb.dev_item.optimal_align);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.optimal_width = {0}", btrfsSb.dev_item.optimal_width);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.minimal_size = {0}", btrfsSb.dev_item.minimal_size);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.type = {0}", btrfsSb.dev_item.type);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.generation = {0}", btrfsSb.dev_item.generation);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.start_offset = {0}", btrfsSb.dev_item.start_offset);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.dev_group = {0}", btrfsSb.dev_item.dev_group);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.seek_speed = {0}", btrfsSb.dev_item.seek_speed);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.bandwitdh = {0}", btrfsSb.dev_item.bandwitdh);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.device_uuid = {0}", btrfsSb.dev_item.device_uuid);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.uuid = {0}", btrfsSb.dev_item.uuid);
+            DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.label = {0}", btrfsSb.label);
+
+            sbInformation.AppendLine("B-tree filesystem");
+            sbInformation.AppendFormat("UUID: {0}", btrfsSb.uuid);
+            sbInformation.AppendFormat("This superblock resides on physical block {0}", btrfsSb.pba);
+            sbInformation.AppendFormat("Root tree starts at LBA {0}", btrfsSb.root_lba);
+            sbInformation.AppendFormat("Chunk tree starts at LBA {0}", btrfsSb.chunk_lba);
+            sbInformation.AppendFormat("Log tree starts at LBA {0}", btrfsSb.log_lba);
+            sbInformation.AppendFormat("Volume has {0} bytes spanned in {1} devices", btrfsSb.total_bytes, btrfsSb.num_devices);
+            sbInformation.AppendFormat("Volume has {0} bytes used", btrfsSb.bytes_used);
+            sbInformation.AppendFormat("{0} bytes/sector", btrfsSb.sectorsize);
+            sbInformation.AppendFormat("{0} bytes/node", btrfsSb.nodesize);
+            sbInformation.AppendFormat("{0} bytes/leaf", btrfsSb.leafsize);
+            sbInformation.AppendFormat("{0} bytes/stripe", btrfsSb.stripesize);
+            sbInformation.AppendFormat("Flags: 0x{0:X}", btrfsSb.flags);
+            sbInformation.AppendFormat("Compatible flags: 0x{0:X}", btrfsSb.compat_flags);
+            sbInformation.AppendFormat("Read-only compatible flags: 0x{0:X}", btrfsSb.compat_ro_flags);
+            sbInformation.AppendFormat("Incompatible flags: 0x{0:X}", btrfsSb.incompat_flags);
+            sbInformation.AppendFormat("Device's UUID: {0}", btrfsSb.dev_item.uuid);
+            sbInformation.AppendFormat("Volume label: {0}", btrfsSb.label);
+
+            information = sbInformation.ToString();
+
+            xmlFSType = new Schemas.FileSystemType();
+            xmlFSType.Clusters = (long)(btrfsSb.total_bytes / btrfsSb.sectorsize);
+            xmlFSType.ClusterSize = (int)btrfsSb.sectorsize;
+            xmlFSType.FreeClusters = xmlFSType.Clusters - (long)(btrfsSb.bytes_used / btrfsSb.sectorsize);
+            xmlFSType.FreeClustersSpecified = true;
+            xmlFSType.VolumeName = btrfsSb.label;
+            xmlFSType.VolumeSerial = string.Format("{0}", btrfsSb.uuid);
+            xmlFSType.VolumeSetIdentifier = string.Format("{0}", btrfsSb.dev_item.device_uuid);
+            xmlFSType.Type = Name;
         }
     }
 }
diff --git a/DiscImageChef.Filesystems/DiscImageChef.Filesystems.csproj b/DiscImageChef.Filesystems/DiscImageChef.Filesystems.csproj
index 1bfed2fd4..3b6e12c9c 100644
--- a/DiscImageChef.Filesystems/DiscImageChef.Filesystems.csproj
+++ b/DiscImageChef.Filesystems/DiscImageChef.Filesystems.csproj
@@ -59,6 +59,7 @@
     <Compile Include="UNIXBFS.cs" />
     <Compile Include="Acorn.cs" />
     <Compile Include="Nintendo.cs" />
+    <Compile Include="BTRFS.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ItemGroup>