I have been trying to use avisynth but when I open any file, there is pixelated garbage all over the video. I have tried opening the avs file in Windows media player and VirtualDubMod. I am not trying to do anything to the video yet. I'm just trying to open it. I am trying to upload some screenshots of the issue but I am having trouble uploading to the forum so here is a . The picture on the left is how the video should look. But when I open the avs file it looks like the right pic. The only line I have written in the avs file is: AviSource("sample.avi") I have tried installing avisynth on two computers with the same results. I even tried downloading it again with no difference. Any help would be appreciated.

What format is the video? I would use FFMS2 (FFmpegSource2() ) to load the video file instead, it is an external plugin. Those look like video decode errors to me.

Have you tried with DirectShowSource ? ex: DirectShowSource("sample.avi",FPS=29.970, ConvertFPS=false)

Thank You 

Both of your suggestions worked. Thank you.