no disc/unknown disc Error Message - Possible cause

To all the computer freaks who use the CDs/DVDs/VCDs regularly in the players, this is a common message that pops up regularly in a little bit older machines.




Fix: The lens of the DVD Writer could be dirty or misaligned. Purchase a good lens cleansing disc or if you can - open the writer and clean it carefully (Using an ear bud dipped in isopropyl alchohol).
Note:- If its under warranty - Never open it. I mean enjoy by calling your vendor :)

Courtesy of Fix - Chip