MPEG1 - great.New in Compressor 1.2 Update
Support for MPEG-1 output files
Pixel aspect ratio setting for filters
Batches can be saved
Preview window improvements
Improved high definition to standard definition transcoding
QuickTime output files now include timecode
Compressor didnt support this before, and Cleaner always crashed - or produced really poor and messed up output last time i tried.