[saltman]

your gonna want to use tmpgenc express. got to the mpeg tools button. demultiplex the .vob files to .m2v and wav. use vegas or audacity or soundforge or whatever your familiar with to match up the two audios exactly, stretching if required. Then remultiplex the new audio with the .m2v. This will allow you to add the audio without rerendering the video. Then you can use whatever program you want to author menus for the new mpeg2 files.