|I would try to boot to a known good bootable cd. If it boots then you know at least the device can read. Then maybe I'd try a live cd that can boot with the "to ram" feature. Then I'd try to burn a cd. Do these setups to decide if the drive is OK or not or if it is a software issue.|
The dvd part or the drive and the cd part are usually two different parts. One can go bad and leave the other OK.
Why did it take me over a year to phone in a problem to ATT?