Optiarc AD-7170A: Doesn\'t recognize DVD media, CD media only



[qanda]This question is published in the hardware section for the Optiarc AD-7170A. Click here to view full specs.[/qanda]Hi, I have formated my PC, installed Win XP SP2. The CD/DVD drive recognizes and run CD media, but DVD media is not recognized, thus can’t be played or browsed. I have tried installing cyberlink - no change. Wherever I looked, this hardware requires no driver, as it uses the OS drivers, which apparently can’t read the DVD content.  Please help… Thanx