Loss of Audio / Video sync between browser and canvas

When I am working in the browser, the video and audio are in sync. But the moment I put the clip into the canvas, I lose the sync. I captured an entire mini DV tape and then cut it up into clips. Some of the clips are fine and some lose the sync. Any ideas? Thanks in advance.
Power Mac G5 Mac OS X (10.4.4)

You must mean when you are working in the Viewer, the sync is maintained.
If sync is lost, it is often the result of mismatched audio sample rates. For example, if your sequence is set to 48khz/16 bit and your clip is 32khz/12bit, audio can drift. It will drift even if the audio is 48.001khz.
Only DVCAM locks audio to video. Long captures using consumer equipment are particularly susceptible to drift. One strategy to avoid it is to log the clips on the tape and capture in short segments.
Good luck.
x

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You must mean when you are working in the Viewer, the sync is maintained.
If sync is lost, it is often the result of mismatched audio sample rates. For example, if your sequence is set to 48khz/16 bit and your clip is 32khz/12bit, audio can drift. It will drift even if the audio is 48.001khz.
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Good luck.
x

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Hello:
Thank you Robert J. Johnston, the_wine_snob, Paul_LS and SteveGrisetti for your help so far.
So this is where I am at now:
Files all seem to be of the same type, so I will just say "the file" for the one I am working with right now.
Loaded file into VirtualDub. I like that program. Well done, whoever made it. Did some basic cutting of unwanted stuff. Saved as AVI. Saved both a Direct Stream Copy and a Full Processing Copy.
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Saved as DV-AVI: plays fine. no audio sync probelms. love the video quality. 2.95GB, so too big
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Saved as Windows Media: Do not "think" there are any audio sync problems; if there are, they are very subtle. Not crazy about video quality. Better than flash video option though still flickers between two types of qaulity (if that makes sense) . 52MB
Any suggestions as to what I should do at this point to meet my stated goal. I assume [share]ing is what I should do? Is there any exporting or any other options I do not know about. Without your help I figure I will Share to MPEG? Not sure why Media Player won't play it and Windows Media Player will?
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I have a problem with the sync between iTunes and ipad2. I can not see the files in iPad. Help me please.

I have a problem with the sync between iTunes and ipad2. I can not see the files in iPad. Help me please.

Cannot see what files ? Music (synced music should appear in the iPod app), films/TV shows (Videos app), documents ... ?

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The Video and Audio are OOS. Let's say that at the beginning of the Clip, the difference is ~ 12 frames off. Is it still that ~ 12 frames off at the end, or is it now ~40 frames OOS?
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