To our surprise, the Optiarc drive was incapable of even recognizing any of the CD-RW media that we tried to test on it. This problem occurred after using the drive for a while and running various tests for this review. The drive had also showed a strange behavior early in this review when we tried to read a CD-RW disc, although the test finished. We hope the final version of the drive to have this problem fixed. This page will be updated accordingly st that time.