Hi I am using FilmMachine & Canopus Procoder to convert an AVI with MP3 to DVD (MPEG2) with AC3 I then multiplex them with TMPGEnc DVD Author. My question to you all is in VirtualDub it recognises improper VBR audio encoding and from past experience this means once converted it will be out of sync. I know I can uncompress the audio and then convert but i wonder because Filmmachine's BeSweet will create 1 Video file & 1 AC3 audio file when I multiplex them in TDA will they be in sync? Cheers Jim