Thanks for your reply Alex. I have .VOB files of the movie. Just the same single audio and video source. The sync looks good in the .VOB files but the video is distorted and needs some cropping and other work, plus I want to do a fan edit as well. When I import into my editing software, Premiere Pro, the sync is inconsistent…it varies without rhyme or reason from watchable to distracting. When I slow down and inspect frame by frame, usually the audio leads the video by a few frames. When I export, the opposite is actually happening. The audio lags the video even more noticeably.