Audio-Video alignment issues when exporting

Hi everyone, I'm a first-time user of this message board and I would appreciate your help.
I use iMovie HD 6.0.3 (267.2), and recently when I have exported my movie projects to iDVD (or quicktime, for that matter), I notice that the sound plays back at a slower pace than the visual part. Eventually you can see a huge gap between when the sound plays and the accompanying visual part appears. I have used iMovie for awhile and I hope it is not simply being overused, but are there any ideas on how to fix it? I'd GREATLY appreciate help.
Thanks so much.

Hi
Can it be so that Your Camera records in 12-bit audio
iMovie must have 16-bit audio (set Camera to this so further recordings will work)
Try select all clips in TimeLine (audio track view) - go up to Advance menu and
then down to "Extract Audio"
This helps in some cases.
*Not knowing the origin to Your problem - General approach when in trouble is as follows.*
• Free space on internal (start-up) hard disk if it is less than 10Gb should rather have 25Gb
• Delete iMovie pref file - or rather start a new user/account - log into this and re-try
iMovie pref file resides.
Mac Hard Disk (start-up HD)/Users/"Your account"/Library/Preferences
and is named. *com.apple.iMovie.plist *
While iMovie is NOT RUNNING - move this file out to desk-top.
Now restart iMovie.
• Hard disk is untidy. Repair Permissions, Repair Hard disk (Apple Disc Util tool)
• Garageband-fix. Start it, Play a note and Close it. Re-try (Corrects an audio problem that hinders iMovie)
• Screen must be set to Million-colors
• Third party plug-ins that doesn't work OK (not relevant for iMovie’08 or 09)
iMovie updated ?
QuickTime updated ?
Mac OS version ?
• Program miss-match. iMovie 5.0.2, up to Mac OS X.4.11 AND QuickTime 7.4.1 - is OK
• Program miss-match. iMovie 6.0.3 or 6.0.4, Mac OS X.4.11 AND QuickTime 7.4.1 - is OK (might work under Leopard)
• Program miss-match. iMovie’08 v. 7.0.1, Mac OS X.4.11 AND QuickTime 7.4.1 - is OK (might work under Leopard)
From LKN 1935. (in this case = iMovie HD (5), I tried it all, but nothing worked.
Your answer (above) has been helpfull insofar as all the different trials led to the conclusion that
there was something wrong with my iMovie software. I therefore threw everything away and reinstalled
iMovie from the HD. After that the exportation of DV videos (there has not been any problem with HDV videos)
to my Sony camcorders worked properly as it did before.
Lennart Thelander
I run "Cache Out X", clear out all caches and restarts the Mac.
Yours Bengt W

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http://forums.adobe.com/thread/913334
http://forums.adobe.com/thread/845731
http://forums.adobe.com/message/3234794
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