It works well w/ Windows Media Center... WinTV7 is also very good. I use it on XP Pro and Vista Ultimate 64 Bit.
Its my PVR and DVR....Its an excellent recording HDTV show. The limit is your HD space. Other HDTV Tuner stops recording when certain limits are hit. Not on this board. I recorded 4 hrs sports event and ended up with ~ 27Gbyte of recorded HDTV show.