diff --git a/BizHawk.Client.EmuHawk/AVOut/FFmpegWriter.cs b/BizHawk.Client.EmuHawk/AVOut/FFmpegWriter.cs
index 385285f57e..c46f327cf2 100644
--- a/BizHawk.Client.EmuHawk/AVOut/FFmpegWriter.cs
+++ b/BizHawk.Client.EmuHawk/AVOut/FFmpegWriter.cs
@@ -77,31 +77,38 @@ namespace BizHawk.Client.EmuHawk
 		/// </summary>
 		void OpenFileSegment()
 		{
-			ffmpeg = new Process();
+			try
+			{
+				ffmpeg = new Process();
 #if WINDOWS
-			ffmpeg.StartInfo.FileName = System.IO.Path.Combine(PathManager.GetBasePathAbsolute(), "dll", "ffmpeg.exe");
+				ffmpeg.StartInfo.FileName = System.IO.Path.Combine(PathManager.GetBasePathAbsolute(), "dll", "ffmpeg.exe");
 #else
-			ffmpeg.StartInfo.FileName = "ffmpeg"; // expecting native version to be in path
+				ffmpeg.StartInfo.FileName = "ffmpeg"; // expecting native version to be in path
 #endif
 
-			string filename = String.Format("{0}_{1,4:D4}{2}", baseName, segment, ext);
+				string filename = String.Format("{0}_{1,4:D4}{2}", baseName, segment, ext);
+				ffmpeg.StartInfo.Arguments = String.Format("-y -f nut -i - {1} \"{0}\"", filename, token.commandline);
+				ffmpeg.StartInfo.CreateNoWindow = true;
 
-			ffmpeg.StartInfo.Arguments = String.Format("-y -f nut -i - {1} \"{0}\"", filename, token.commandline);
+				// ffmpeg sends informative display to stderr, and nothing to stdout
+				ffmpeg.StartInfo.RedirectStandardError = true;
+				ffmpeg.StartInfo.RedirectStandardInput = true;
+				ffmpeg.StartInfo.UseShellExecute = false;
 
-			ffmpeg.StartInfo.CreateNoWindow = true;
+				commandline = "ffmpeg " + ffmpeg.StartInfo.Arguments;
 
-			// ffmpeg sends informative display to stderr, and nothing to stdout
-			ffmpeg.StartInfo.RedirectStandardError = true;
-			ffmpeg.StartInfo.RedirectStandardInput = true;
-			ffmpeg.StartInfo.UseShellExecute = false;
+				ffmpeg.ErrorDataReceived += new DataReceivedEventHandler(StderrHandler);
 
-			commandline = "ffmpeg " + ffmpeg.StartInfo.Arguments;
+				stderr = new Queue<string>(consolebuffer);
 
-			ffmpeg.ErrorDataReceived += new DataReceivedEventHandler(StderrHandler);
-
-			stderr = new Queue<string>(consolebuffer);
-
-			ffmpeg.Start();
+				ffmpeg.Start();
+			}
+			catch
+			{
+				ffmpeg.Dispose();
+				ffmpeg = null;
+				throw;
+			}
 			ffmpeg.BeginErrorReadLine();
 
 			muxer = new NutMuxer(width, height, fpsnum, fpsden, sampleRate, channels, ffmpeg.StandardInput.BaseStream);
@@ -132,6 +139,7 @@ namespace BizHawk.Client.EmuHawk
 
 			// how long should we wait here?
 			ffmpeg.WaitForExit(20000);
+			ffmpeg.Dispose();
 			ffmpeg = null;
 			stderr = null;
 			commandline = null;
@@ -269,7 +277,6 @@ namespace BizHawk.Client.EmuHawk
 			this.channels = channels;
 		}
 
-
 		public override string ToString()
 		{
 			return "FFmpeg writer";
diff --git a/BizHawk.Client.EmuHawk/AVOut/NutMuxer.cs b/BizHawk.Client.EmuHawk/AVOut/NutMuxer.cs
index 09f26133c6..6e2441f302 100644
--- a/BizHawk.Client.EmuHawk/AVOut/NutMuxer.cs
+++ b/BizHawk.Client.EmuHawk/AVOut/NutMuxer.cs
@@ -15,6 +15,7 @@ namespace BizHawk.Client.EmuHawk
 	{
 		// this code isn't really any good for general purpose nut creation
 
+		#region binary write helpers
 
 		/// <summary>
 		/// variable length value, unsigned
@@ -100,6 +101,7 @@ namespace BizHawk.Client.EmuHawk
 			}
 			stream.Write(b, 0, 8);
 		}
+
 		/// <summary>
 		/// big endian 32 bit unsigned
 		/// </summary>
@@ -115,6 +117,7 @@ namespace BizHawk.Client.EmuHawk
 			}
 			stream.Write(b, 0, 4);
 		}
+
 		/// <summary>
 		/// big endian 32 bit unsigned
 		/// </summary>
@@ -131,6 +134,10 @@ namespace BizHawk.Client.EmuHawk
 			stream.Write(b, 0, 4);
 		}
 
+		#endregion
+
+		#region CRC calculator
+
 		static readonly uint[] CRCtable = new uint[]
 		{
 			0x00000000, 0x04C11DB7, 0x09823B6E, 0x0D4326D9,
@@ -156,7 +163,7 @@ namespace BizHawk.Client.EmuHawk
 			return crc;
 		}
 
-
+		#endregion
 
 		/// <summary>
 		/// writes a single packet out, including checksums
@@ -264,6 +271,7 @@ namespace BizHawk.Client.EmuHawk
 			}
 		}
 
+		#region fields
 
 		/// <summary>
 		/// stores basic AV parameters
@@ -320,6 +328,9 @@ namespace BizHawk.Client.EmuHawk
 		/// </summary>
 		Queue<NutFrame> audioqueue;
 
+		#endregion
+
+		#region header writers
 
 		/// <summary>
 		/// write out the main header
@@ -409,6 +420,8 @@ namespace BizHawk.Client.EmuHawk
 			header.Flush();
 		}
 
+		#endregion
+
 		/// <summary>
 		/// stores a single frame with syncpoint, in mux-ready form
 		/// used because reordering of audio and video can be needed for proper interleave
@@ -502,14 +515,6 @@ namespace BizHawk.Client.EmuHawk
 				return left >= right;
 			}
 
-
-			static NutFrame()
-			{
-				//dbg = new StreamWriter(".\\nutframe.txt", false);
-			}
-
-			//static StreamWriter dbg;
-
 			/// <summary>
 			/// write out frame, with syncpoint and all headers
 			/// </summary>
@@ -519,10 +524,8 @@ namespace BizHawk.Client.EmuHawk
 				dest.Write(data, 0, data.Length);
 				//dbg.WriteLine(string.Format("{0},{1},{2}", pts, ptsnum, ptsden));
 			}
-
 		}
 
-
 		/// <summary>
 		/// write a video frame to the stream
 		/// </summary>
@@ -540,9 +543,6 @@ namespace BizHawk.Client.EmuHawk
 				audioqueue.Dequeue().WriteData(output);
 		}
 
-
-
-
 		/// <summary>
 		/// write an audio frame to the stream
 		/// </summary>
@@ -629,4 +629,3 @@ namespace BizHawk.Client.EmuHawk
 		}
 	}
 }
-