Toshiba Qosmio 505 - 8100 cd/dvd Blu-Ray not reading anything

Does anyone have any idea on how to get my cd/dvd working again? I have tried uninstalling it and have also tried MrFixIt and both say it is working normally. I am at a loss on what to do now. Every time I put in a cd or dvd it tells me put a different one in. Please Help.

Thanks,

John