Audio Dropouts on H.264 Quicktime movies playing from CD ROM or DVD ROM

I've been consistently having trouble getting H.264 .mov files saved on a CD-Rom or DVD-ROM to play back smoothly on Windows computers. The files will open, but there always seems to be sporadic audio dropouts, every 5-10 seconds the audio will drop out for half a second or so. This doesn't appear to be affecting the video.When the files are copied to the hard drive, the problem goes away, and the problem isn't present at all when playing back on Macs (regardless of whether the file is on a disc or on the HD).
I've read elsewhere on this forums that this is perhaps a data-rate problem, but this really doesn't make any sense to me, seeing as these are highly compressed, very small files (5 fps on the video, audio is AAC mono, 32kbps). Unless my understanding of data rate is completely backwards, a DVD Video or Audio CD would have a much higher data-rate. Seeing as Macs have no problem with this, I'm inclined to think it's some sort of problem with Windows' ability to handle AAC audio. If anyone has any experience with this, and/or ideas for a solution, I would greatly appreciate some feeback.
Thanks!

If the problem goes away when the file is copied to the hard drive, then the problem is almost certainly with the data transfer rate from the CD/DVD drive. If the problem were with Windows decoding H.264 and/or AAC, the problem would also appear for files copies to the hard drive. H.264 is a pretty data-intensive format, so it could easily exceed the available data rate of a CD or DVD. (note that file size will make no difference; it's the data rate, which comes from a combination o the image size of the video and the compression of the video and audio tracks) that's the only factor).
Run QuickTime Player, open one of the videos, and open the Movie Inspector for the movie (Window -> Show Movie Inspector). Then take a look at the data rate and compare that to the data rate of your CD/DVD drive. If the drive's rate is lower, you have your answer. If it shows that it should be able to handle the data rate, you may need to update or replace the drivers for your CD/DVD drive and/or update the drive's firmware.
Hope this helps.

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