To: Proper codec for mp4 to avi?
Hello,
Please make sure you use the latest version of AVS Video Converter 8.1:
http://download.avs4you.net/distributives/AVSVideoConverter.exe
Please try to install
K-Lite Codec Pack
Try to provide some additional information about the error:
- specify which presets you select for conversion
- specify whether the video is absent in the preview windod
- specify what player you use
Best regards.