diff --git a/SabreTools.IO/Extensions/BinaryWriterExtensions.cs b/SabreTools.IO/Extensions/BinaryWriterExtensions.cs
new file mode 100644
index 0000000..9103cb2
--- /dev/null
+++ b/SabreTools.IO/Extensions/BinaryWriterExtensions.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Text;
+
+namespace SabreTools.IO.Extensions
+{
+    /// <summary>
+    /// Extensions for BinaryWriter
+    /// </summary>
+    /// <remarks>TODO: Add U/Int24 and U/Int48 methods</remarks>
+    public static class BinaryWriterExtensions
+    {
+
+    }
+}
\ No newline at end of file
diff --git a/SabreTools.IO/Extensions/ByteArrayExtensions.cs b/SabreTools.IO/Extensions/ByteArrayExtensions.cs
index 2a87a9e..903adc3 100644
--- a/SabreTools.IO/Extensions/ByteArrayExtensions.cs
+++ b/SabreTools.IO/Extensions/ByteArrayExtensions.cs
@@ -11,6 +11,8 @@ namespace SabreTools.IO.Extensions
     /// <remarks>TODO: Add U/Int24 and U/Int48 methods</remarks>
     public static class ByteArrayExtensions
     {
+        #region Read
+
         /// <summary>
         /// Read a UInt8 and increment the pointer to an array
         /// </summary>
@@ -492,5 +494,13 @@ namespace SabreTools.IO.Extensions
 
             return buffer;
         }
+    
+        #endregion
+
+        #region Write
+
+
+
+        #endregion
     }
 }
\ No newline at end of file
diff --git a/SabreTools.IO/Extensions/StreamExtensions.cs b/SabreTools.IO/Extensions/StreamExtensions.cs
index ed37bcb..7edd97a 100644
--- a/SabreTools.IO/Extensions/StreamExtensions.cs
+++ b/SabreTools.IO/Extensions/StreamExtensions.cs
@@ -12,6 +12,8 @@ namespace SabreTools.IO.Extensions
     /// <remarks>TODO: Add U/Int24 and U/Int48 methods</remarks>
     public static class StreamExtensions
     {
+        #region Read
+
         /// <summary>
         /// Read a UInt8 from the stream
         /// </summary>
@@ -512,5 +514,13 @@ namespace SabreTools.IO.Extensions
 
             return buffer;
         }
+    
+        #endregion
+
+        #region Write
+
+
+
+        #endregion
     }
 }