I was reading another thread (
http://forum.ppcgeeks.com/showthread.php?t=49998) about video playback on the TP. I just started using Super © (
http://www.erightsoft.net/SUPER.html) to convert my videos (divx, AC3, etc..) to work with Core Player. I also used it to adjust some the resolution on some of my videos. The program works great, although I can't seem to be able to successfully convert .mkv videos. It seems to skip a lot.
I've also been using TCPMP occasionally since it isn't bound by codec licensing as Core Player is.
EDIT: HAPPY NEW YEAR!!