[Staffslug] Hardware problem

Help! This is OS agnostic as it's a DVD RW issue so, sorry if it is perceived as OT. Does anybody have any idea why a DVD RW drive will read a DVD, any DVD but it does not even register the fact that a CD has been inserted? After some searching on many hardware tech sites/forums the opposite seems to be common; where a CD is recognised but a DVD is not. Trust me to be awkward :-) It's a Philips drive (I think, it's not mine) in a Dell tower PC that is a couple of years old. The lens is clean and all leads are in place. I have stripped the drive down as far as it will go and put it back together. It still plays DVDs but not CDs... Any ideas? -- ============================================== I am only human, please forgive me if I make a mistake it is not deliberate. ============================================== PLEASE DON'T drink and drive it's not clever, it's just stupid. Kevan Farmer Linux user #373362 Cheslyn Hay Staffordshire WS6 7HR