Error: Device Not Ready (Medium Not Present - Tray Closed) in ImgBurn Support Posted June 23, 2022 43 minutes ago, dbminter said: NEC OptiArc drives had a tendency to stop automatically cycling trays for Verify after a while of use. It would work to manually cycle the tray and resume Verifies or do a manual Verify. Your Samsungs may be rebranded OptiArcs, particularly if they were made 11 years ago. Wild. They certainly have had a lot of use. On a whim, I burned my last disc with the drive normally reserved for reading, and the verification process went off without a hitch. Of course, that proves nothing; it's only one occasion. But I have the option, and, worse comes to worse, I just swap the drives and buy more. Thanks for the info!