I just like the image quality of purevideo. It's really quite clear and the colors are good. I may be crazy, but I think I can easily see the difference. I've never used dvix player though. Supposedly purevideo hardware accelerates video in a manner that other codecs dont have access to. Im not sure if it's true or nv marketing. I do know it has lower cpu utilization than straight dxva acceleration did, so it must be off loading something to the 6800.
I bought the gold version too, my speakers do dts so I can always use spdif pass through if I want dts. The speakers will decode it instead.
I recommend downloading the purevideo trial and seeing if you think it's an iq improvement. Record a mpeg hdtv clip with your fusion, then play it back with pv. Imo it looks better with pv, maybe Im crazy.http://www.nvidia.com/object/dvd_dec...177-trial.html
You can tell if pv is running by checking the taskbar for the pv icon. I have only used pv with mce's interface and wmp10. Pv works in certain other apps though, like watchhdtv and gotallmedia as posted by Snazzy.
dl the following app and set pv as the prefered decoder.http://www.microsoft.com/windowsmobi...r/decoder.mspx
Also make sure you are running the latest vid drivers and pv version.
check nVidia's ftp server,ftp://download.nvidia.com/Windows/