I finally installed ZP and ATI 7.6 and PowerDVD on my HTPC. Cineplayer v4 for video and PowerDVD 4.0 for audio is one hell of a combination. I had a hell of a time getting Cineplayers video filters working with ZP. Everydisk I would play would freeze at about one and a half minutes into the movie. After a day of troubleshooting, I finally determined I had a bad install of DirectX 8.1. Reinstalled it and everything works perfect. I also have TT installed and I can easily switch filters with ZP for PQ comparisons. On my low end PJ, Cineplayer v4 is definitly a step above all others. I would rate PQ, from top to bottom, Cineplayer v4, TT, ATI 4.0, PowerDVD 4., WinDVD 4.0. Of course, this is on my system and those with more revealing sytems may correct me.