I am using powerDVD 7 and ATI Avivo. Avivo seems to work better on the full res (demo channel). Took me a few tries though to get them to show up, even though I edited the ini file. Also, I had to reset DS on channel changes or it bombed.

I am using FFDshow video and the renderer seems to work better on VMR9, but also on Generic fairly well.

I am still curious if Janzy got it working MyTheatre. After playing with it a bit more, I could see myself liking it more, but I cannot for the life of me get any mpeg4 to work in it.