- Mencoder now writes the audio during the first pass, video during the second. This means encodes that end with MKV or MP4 never have to be stuffed into an AVI, which fixes a few problems.
- Run audio & video codec during both pass1 & pass2 to ensure frameskipping works properly. This fixes A/V sync issues.
- Added option to copy AC3 audio directly from the source without transcoding. Useful for DVDs that have low bitrate audio tracks which would suffer from re-encoding.
- Set FPS correctly for MKV files, this fixes A/V sync issues.