Slow video playback with 2 sound tracks

Hi,
I've just been playing around with quicktime files with 2 sound tracks with different languages. When I copy these files to the ipod they playback, but in slow motion. Are there any guidelines for making ipod compatible 2 sound track files?
I know there are movies in the itunes store with two sound tracks with different languages and these are supposed to work OK with the ipod nano.
Any experiences? Thanks,
Robintosh

What software are you using to convert the videos to iPod format?
If you are using Quicktime Pro, or iTunes 6 to do the conversion... then that is most likely where your problem lies.
Your source video file is probably muxed.
Neither QT Pro or iTunes has the ability to successfully encode a muxed video file with audio. You'll end up with video and no audio.
http://docs.info.apple.com/article.html?artnum=302588
You'll need to use some other third-party software to do the conversion. There's a handful of software available. Just search the forums and you'll find many titles mentioned.
Try MPEG Streamclip.

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