Hi, We use a Sony Vaio laptop and everything was Ok... but all of a sudden a problem occurred. Neither DVDs nor CDs could be played. We used Microsoft's Fix It (Automated Troubleshooting Services) and it fixed our CD problem and we can play CDs now but now DVDs . "Fix It" reported there still was a problem but it didn't fix it. Currently, we can play CDs but not DVDs. When going to My Computer also, it cannot detect the drive when we put a DVD. Installing, codec and even deleting lower&upper filter from the registry didn't help either. Do you have any recommendation? Thanks!