Hi, i'm searching about that, and all i can tell you right now is, WinDVD can use the voodoo3 for helping on the decode of a dvd, (help, not completely). I dont know if newer versions of WinDVD can still use the voodoo3, but, some version arround 1999-2000 will help, there is a patch for windvd too, "Patch99enu.exe".

Hope it helps