[Tapeworm]

Originally Posted by pigebear

I was able to sync up the video in the beginning or end but it goes out of sync at the other end by less than a beat

Seems like either:
Your video was transferred with some dropped frames or
Your audio is off-speed, which can happen on purpose, or because of variations in recording/replay speeds. Recordings from a hard disc recorder or mini-disc aren't very susceptible to this but cassettes, DAT and video sources are.

I've been lucky sometimes that I've been able to have one long audio file and one long video file, and then simply grabbed the tail end of one, digitally speaking, and stretching it to fit. I've found that stretching out video results in some weird artifacting, so if it's only a quarter-beat difference, I'm better off time-shortening the audio track just a hair. Synch up at the beginning and push/pull the track at the end.

Good luck, it's trial and error. Or if your problem is dropped frames, try re-doing your video transfer if possible.