a friend of mine has a flat panel iMac with a superdrive (pioneer DVR-104)
recently the dvd drive has stopped reading DVD's , DVD-R and DVD-RW.
it still reads CD, CD-R and CD-RW. (i didnt get time to test burning a cd)

how likely is it that the drive has been damaged from using high speed 4x
media?
i updated it to the latest firmware A227, but it still does not like DVD's.

-geoff