Hi. Sorry for posting what has probably been asked b4, but I caould not find what I needed. I have an old AMD Athlon 950mhz, 512MB, 80GB, 32MB ATI AIW running W2K and have recently bought an LG GSA-4163B DVD burner. After burning 2 CDR's, drive has stopped reading any type of disc. When trying to burn, says no media inserted. Do you think my pc specs are too low or should I RMA it as it's probably faulty? I did see min specs somewhere as P4 2Ghz, but how come similar drives have min specs as P3 800Mhz? Could the fault be with my 300W PSU? Should I upgrade to 500W? As a newbie, I's hate to discover after getting a replacement that it's down to my pc specs. Can anyone give some help and advice?