Great forum loads of info but I am still in a spin over my newly installed NEC AD 5170 A DVD RW drive. I replaced a CD ROM drive to try and bring my PC up in the world and it correctly appears as a DVD RW drive. It even shows me the titles of discs I put into it but none of them will play, thats DVDs, CDs and CD ROMs and using Windows Media Player on XP Pro. It is in the master position to a CD RW drive that I fitted a couple of years ago. That installation was very staight forward on W98 and so I am confused as to why it is all proving so difficult this time around with a DVD drive on XP? If anyone can give me a steer or anything to try it would be much appreciated.