Audio dropout one clip only

I created a movie in iMovie 6.0.3 (project size approx. 3GB) and shared it with iDVD to burn a DVD. Very little extra added in iDVD for Theme, etc. so it should have been well within size limits of standard DVD-R. (I have successfully burned DVDs in iDVD for similar projects with the same brand of DVD-R media previously with no problems). The movie played with no audio loss in iMovie and on the iDVD preview.
I do have music running under the clips, and the only difference on the clip with audio loss on the DVD is that I had to extract the audio from the clip in iMovie to make an edit work.
On that clip of the movie when viewed in iMovie's timeline view I have my video visible on the top line with my extracted audio (from the video clip)on the middle line and my music on the bottom line.
When I burned the DVD and tried to play it back on my TV the audio was fine until the last clip of the movie -- where there was no sound at all. I tried importing from the Media pane in iDVD rather than sharing from iMovie with the same bad result after burning the DVD.
I have checked the forum, and while there are many similar issues no one seemed to have this exact problem. I did print out the linked article re: Updating iDVD to 6.0.1( I currently have version 6.0.3) and deleting encoded assets (I had plenty of space available on my hard drive) -- it didn't seem to apply to my problem, if I'm understanding those two issues.
I will try the Disk Utility fix, but I'm trying to make a deadline and have never created a DVD that way before.
Any ideas how to burn the DVD -- preferably with the iDVD theme and button menu if possible, but most importantly with the least loss of video and sound quality.

Thank you for the helpful response. I was able to deliver the DVD on time with a workaround.
Once that was done, I tried playing the DVDs I created originally on my friend's DVD player and they played perfectly!!!
Any suggestions out there -- other than I need a new DVD player
is there any way to confirm a DVD burned in iDVD will play on the majority of DVD players before I send it out as a finished project?

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Eedcam wrote:
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With Comcast.
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Not really that difficult to do!
Extract your audio from
I want the video to cut to a second clip but the audio from the first clip to keep playing
Split your video where you want to put the second clip.
Split the audio at the same point.
Lock the 2 newly split audio to the 2 newly split clips.
Drop and drag the video you want to insert at the split point.
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First part of split video with first part of split audio locked
Newly inserted clip (extract any audio that is associated with that clip and delete it.)
Second half of split video with audio locked.
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i back
to the inserted clip. So you need to un-lock the audio and slide it back to the point where you split it.
Adjust the lengths of the clips before doing any of this and do not forget to svae, save, save along the way.
Clear as mud?
Hope not-Sue

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Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

Audio dropout one clip only

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