Playback speed different on set-top vs. computer

[oncedust]

I've been authoring DVDs for the past few months now, and I just started playing with VCDs. I can get my mpeg video to play back fine on the PC, but when I put it in a set-top player (I've tried two different ones), it plays back in slow motion.

Why is that? How can I fix that? Does it have to do with the bitrate in which I am encoding the mpeg in the first place?

Thanks,
Casey

[mijman]

It just might. What are you encoding it at? Computer DVD drives tend to read faster than standalone players. The TMPGenc template for DVDs has a constant quality of 9000, but professional DVDs are encoded at a VARIABLE bit rate UP TO 9000. They are usually not that high a quality, with the average hovering around 5000. But, then again, they have more space to play with when they use dual layer discs.