|It might be a codec problem. The AVI container can be used with a number of different codecs, such as DV, XVID, DIVX, just to name a few. I'm guessing that your DVD player supports some (probably DIVX, at the least), but not all available codecs. Obviously, you have the necessary codecs on your machine (to play the ones the DVD player doesn't like). |
Download and install Gspot. Use it to determine which codecs are being used in both the non-working videos, and the working ones. If you find that the non-working vids use a codec that none of the working ones use, you'll have to convert them. VirtualDub allows you to choose the codecs for both audio and video (from any installed on your computer). For your purposes, I'd stick with the DIVX codec (for video).
VirtualDub is open-source, so you can download it free of charge. Gspot is freeware, so again,no cost involved.
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