diff --git a/MediaBrowser.Common.Implementations/IO/CommonFileSystem.cs b/MediaBrowser.Common.Implementations/IO/CommonFileSystem.cs
index ea4a61e25a..e9ef846634 100644
--- a/MediaBrowser.Common.Implementations/IO/CommonFileSystem.cs
+++ b/MediaBrowser.Common.Implementations/IO/CommonFileSystem.cs
@@ -234,10 +234,10 @@ namespace MediaBrowser.Common.Implementations.IO
         {
             if (_supportsAsyncFileStreams && isAsync)
             {
-                return new FileStream(path, mode, access, share, 4096, true);
+                return new FileStream(path, mode, access, share, StreamDefaults.DefaultFileStreamBufferSize, true);
             }
 
-            return new FileStream(path, mode, access, share);
+            return new FileStream(path, mode, access, share, StreamDefaults.DefaultFileStreamBufferSize);
         }
 
         /// <summary>
diff --git a/MediaBrowser.Common.Implementations/Serialization/JsonSerializer.cs b/MediaBrowser.Common.Implementations/Serialization/JsonSerializer.cs
index b49551ea99..f194b334a8 100644
--- a/MediaBrowser.Common.Implementations/Serialization/JsonSerializer.cs
+++ b/MediaBrowser.Common.Implementations/Serialization/JsonSerializer.cs
@@ -61,7 +61,7 @@ namespace MediaBrowser.Common.Implementations.Serialization
 
         private Stream OpenFile(string path)
         {
-            return new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
+            return new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read, 131072);
         }
 
         /// <summary>
diff --git a/MediaBrowser.Common/IO/StreamDefaults.cs b/MediaBrowser.Common/IO/StreamDefaults.cs
index 0cbf1643fb..450d293d4b 100644
--- a/MediaBrowser.Common/IO/StreamDefaults.cs
+++ b/MediaBrowser.Common/IO/StreamDefaults.cs
@@ -9,11 +9,11 @@ namespace MediaBrowser.Common.IO
         /// <summary>
         /// The default copy to buffer size
         /// </summary>
-        public const int DefaultCopyToBufferSize = 81920;
+        public const int DefaultCopyToBufferSize = 262144;
 
         /// <summary>
         /// The default file stream buffer size
         /// </summary>
-        public const int DefaultFileStreamBufferSize = 4096;
+        public const int DefaultFileStreamBufferSize = 262144;
     }
 }
diff --git a/MediaBrowser.Server.Implementations/HttpServer/HttpResultFactory.cs b/MediaBrowser.Server.Implementations/HttpServer/HttpResultFactory.cs
index da37cfa8bf..961d58eb6e 100644
--- a/MediaBrowser.Server.Implementations/HttpServer/HttpResultFactory.cs
+++ b/MediaBrowser.Server.Implementations/HttpServer/HttpResultFactory.cs
@@ -335,7 +335,7 @@ namespace MediaBrowser.Server.Implementations.HttpServer
         /// <returns>Stream.</returns>
         private Stream GetFileStream(string path, FileShare fileShare)
         {
-            return _fileSystem.GetFileStream(path, FileMode.Open, FileAccess.Read, fileShare, true);
+            return _fileSystem.GetFileStream(path, FileMode.Open, FileAccess.Read, fileShare);
         }
 
         public object GetStaticResult(IRequest requestContext,