I don't know but my CD ROM drive doesn't read some CDs on my system. But from last few days now it can not read any CD. I tried to clean up the lens by using a laser lens cleaning CD, but was facing the same problem. So now, can any body tell me that how to repair my cd driver? Can any body provide me the correct solution for the above issue? Any kind of information on teh above issue would be apprecaited.