That error message makes me wonder if it's correctly identified in your BIOS?
I must say, when I was still building a fair number of computers a week for friends and others, I built up a huge pile of fubar'ed CD and DVD drives of all makes and description. Reliability just doesn't seem to be a strong point of optical drives.
Lets see if anyone else has any suggestions for your Ken
"The great majority of mankind are satisfied with appearances, as though they were realities, and are often more influenced by the things that seem than by those that are." - Niccolo Machiavelli