All of a sudden, I am experiencing the same problem with DVD/RW drives from 2 manufacturers on 2 different machines. The system recognizes the drive but not the CD in it (i.e. can't read the data from the disk). The CD is readable on other drives.

I've tried completely uninstalling and reinstalling both the hardware and software and drivers, but I get the same result. The HP CD Writer is on a Win 98 machine, and the Sony DRU-710A is on a Win XP Pro machine.

Any ideas?

Thanks!