sandman30s

Hi, it was using a 7900 GS and it's downloaded blu-ray content. Powerdvd and purevideo versions are identical, and so is XP SP2. Monitor and color settings are the same. So the only things that changed are the 9600 GT, the cpu and motherboard.

There is a lot of conflicting information on the net about powerdvd playback issues. Some claim it is related to certain nvidia cards not supporting purevideo, although information regarding the 9600 GT is quite vague. Also, powerdvd is apparently quite fussy about many different things on your PC. Some talk about HDCP/monitor issues although I can't understand how playing downloaded content is related.

Anyway, I eventually got *somewhere* - the HDDVD content works with media player classic (MPC) with a lot of tweaking and using the coreavc codec and haali splitter. The blu-ray content works with picture only and NO audio. Playback is silky smooth and works only with dragging the raw stream video file into MPC. I would still like powerdvd to work as I remember the audio playing in the same blu-ray movie before, on my old PC. Or if someone can tell me how to make audio work with MPC - there are lots of forums on this, but there are many complications most of which are beyond my understanding.