Audio sync even with extraction, any thoughts

Hi all, I have an audio sync problem. I've posted in iDVD but thoughg it may be appropriate to stop by here. I have been trying to make my DVD of back up stooges for my dad but am have a tough time with audio sync. On my last run I imported from VCR through my sony nadycam where I turned to audio to 16 bit, sent to iDVD did my thing. I have 6 shorts but instead of one long clip I split each episode and chaptered it. Sync was out but this is how it was, at the beginning of each episode/chapter, audio was then half through starts to go then at the end of all of them it is wacked. So then I htough why not try and extract audio, its solved major problems for me in the past with mpeg 1 and transitios etc. So when I extracted the audio I could not beleive it but it was so messed up. Why would imovie do that, cause if audio isn't in sync in imovie then it sure won't work anywhere else. So what would cause imovie to do that, I sure hope someone has a suggesion.
Nathan

The problem:
http://www.dvformat.com/htm/features/2000/800/dv_formatfaq.htm
(Scroll down about two thirds to "What's the difference between locked and unlocked audio?" )
The solution:
Always use 16-bit/48kHz audio.
iMovie: Audio and Video Lose Synchronization
http://docs.info.apple.com/article.html?artnum=61636
A few possible solutions here:
http://www.danslagle.com/mac/iMovie/audio/1001.shtml
iMovie: Improving audio and video synchronization
http://docs.info.apple.com/article.html?artnum=42974

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