Posted 03 April 2009 - 07:11 AM
When Device Manager says a device is working correctly, that means it responds correctly to commands from the driver.
I assume you mean the drive cannot read the contents of any discs, to display in My Computer etc?
The best first test to try is set the drive as first boot device in the BIOS setup, and try to boot from a bootable CD such as a Windows install CD or a Linux Live CD like you may find as a computer magazine cover disk.
If the drive cannot read the CD to boot from, then the drive is faulty, or possibly needs a laser lens clean as Mandeep has suggested. If cleaning doesn't enable to drive to read the CD, then usually the laser has failed, and the drive needs replacing. If the drive is faulty, it's better to find this out before spending time trying other measures.
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