I just burned a DVD on my new powerbook and it really did not turn out right. Besides the fact that iDVD is one of the slowest programs I have ever used (Even with background encoding turned off) when I preview my disc, everything plays fine. So I click burn, wait a few hours, out pops my disc. It starts out fine, the menu's are all good and it plays the first chapter. After that, every following chapter has audio but there is no video. So I put the DVD in my regular player on the TV and it wouldn't even recognize the disc. Then I put it in a friend's DVD player and it had the same video only problem. Any ideas? Thanks!