Various things which I will briefly dscribe later - sufice to say they all seem ok (like resetting BIOS defaults and checking that the driver is recognised by the BIOS)......but haven't cleaned lens. Must get lens cleaners CD.....
but.........
Sorry for being thick, but as the CD drive and DVD drive are the same thing, would they use the same laser and detector (and optics) for both types of media and the electronics/software differ?
I know very little (nothing) about DVD technology....... I know how a CD is read with a laser and phase shifts etc, but is a DVD simply an enhancement? It does use more expensive disk - so just how does it differ?
Different lens?