Ensure images that do not support resume fail instead of overwriting an existing file.

.idea/.idea.Aaru/.idea/vcs.xml

@@ -6,6 +6,5 @@
     </profile>
   </component>
   <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
   </component>
 </project>

Aaru.Images/Anex86/Write.cs

@@ -81,7 +81,7 @@ public sealed partial class Anex86
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/Apple2MG/Write.cs

@@ -84,7 +84,7 @@ public sealed partial class Apple2Mg
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/Apridisk/Write.cs

@@ -68,7 +68,7 @@ public sealed partial class Apridisk
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/BLU/Write.cs

@@ -86,7 +86,7 @@ public sealed partial class Blu
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/CisCopy/Write.cs

@@ -72,7 +72,7 @@ public sealed partial class CisCopy
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/CopyTape/Write.cs

@@ -72,7 +72,7 @@ public sealed partial class CopyTape
 
         try
         {
-            _dataStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _dataStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/DiskCopy42/Write.cs

@@ -198,7 +198,7 @@ public sealed partial class DiskCopy42
 
         try
         {
-            writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/DriDiskCopy/Write.cs

@@ -81,7 +81,7 @@ public sealed partial class DriDiskCopy
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/MaxiDisk/Write.cs

@@ -100,7 +100,7 @@ public sealed partial class MaxiDisk
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/Parallels/Write.cs

@@ -82,7 +82,7 @@ public sealed partial class Parallels
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/QCOW/Write.cs

@@ -84,7 +84,7 @@ public sealed partial class Qcow
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/QCOW2/Write.cs

@@ -84,7 +84,7 @@ public sealed partial class Qcow2
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/QED/Write.cs

@@ -84,7 +84,7 @@ public sealed partial class Qed
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/RayDIM/Write.cs

@@ -88,7 +88,7 @@ public sealed partial class RayDim
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/RsIde/Write.cs

@@ -83,7 +83,7 @@ public sealed partial class RsIde
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/SaveDskF/Write.cs

@@ -254,7 +254,7 @@ public sealed partial class SaveDskF
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/UDIF/Write.cs

@@ -77,7 +77,7 @@ public sealed partial class Udif
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/VDI/Write.cs

@@ -83,7 +83,7 @@ public sealed partial class Vdi
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {

Aaru.Images/VMware/Write.cs

@@ -157,7 +157,7 @@ public sealed partial class VMware
 
             // TODO: Support split
             _writingStream = new FileStream(_writingBaseName + "-flat.vmdk",
-                                            FileMode.OpenOrCreate,
+                                            FileMode.CreateNew,
                                             FileAccess.ReadWrite,
                                             FileShare.None);
         }

Aaru.Images/Virtual98/Write.cs

@@ -82,7 +82,7 @@ public sealed partial class Virtual98
 
         try
         {
-            _writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+            _writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
         }
         catch(IOException ex)
         {