WMP 11 with the Nvidia Pure Video decoder is very good and may not cost you any money. I'm assuming that your 8800 comes with the Pure Video encoder on it. I purchased my Pure Video decoder before they coupled them with the video cards, but I watch recorded HD video and regular DVD at 1080p resolutions with good results. At this resolution, you will become accutely aware of good and poor DVD mastering/production. The Nvidia sweet will allow you to use a custom resolution and timing setup and also does inverse teceline video conversion which aids in reconstructing non-HD programming as HD quality.