OK all, here's the official Creative driver release to make your DXR3 DVD Decoder card work under Windows XP & 2k. Enjoy!
PS If anyone out there finds that their CXR3 card is dead, I am in need of the "VGA Loopback Cable" - connects from your videocard to the DXR3 decoder card (VGA to 9-pin). Please email me at email@example.com if you have a spare cable to sell me. Thanks!