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My DVD-RW drive has stopped recognizing CDs, but it can read and write DVDs flawlessly.

Is this a software or a hardware problem? How can I fix thus?

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up vote 1 down vote accepted

I had much the same issue with my Lite-on DVD writer. Oddly enough it seemed to happen directly after a windowsXP update. After some research on the 'net (much like you are doing now) I found others with the same issue, remedied by flashing the firmware on my DVD drive. I found some good tips and the correct firmware at The Firmware Page If you can tell me/us the make/model of your DVD drive, then maybe some more specific help can find its way to you.

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