I have a HL-DT-ST DVD+RW GRA-4120B installed in my Dell Dimension 8300 which recently stopped working. I also have a Samsung DVD-ROM as well , which seems to be working fine. The tray door still opens, the green lite goes on, I install a disk, the door closes and the lite goes out and stays out. The drive is still visible in "My Computer" etc., it reads the device is working properly, but it will not recognize any type of disk. so far I have uninstalled an re-installed the driver to no avail. Is it possible the unit is shot? I only have it about 1 1/2 yrs. but have burned a lot of DVDs. I have also run the Diagnostic program and the Dell troubleshooter which didn't show a problem and didn't help. I'm pretty much a novice with this stuff, so any help would be greatly appreciated. Thanks,
Rick
Rick