Can you add an after market dvd INTERNAL burner to a powerbook? Are they all compatible? Is it possible to get one that is faster or better than the dvd burners that apple offers? Have any of you done this?
Yes, it's possible to add one. Check Other World Computing, for example. They sell dual layer 8x internal burners starting at $169. I haven't done it myself, but I know someone who has and it's not exactly easy. Doable, but not easy.
I think that if you have them do it for you, they charge something like $50 or so. Plus, you can get up to a $90 rebate if you trade yours in for the dvd burner.