sounds like the optical drive is no longer working. when you put in a disk, does it show under computer? does the optical drive show up under computer at all? If you insert a disc the optical drive icon should change letting you know that there's a disc in the drive. If not please follow these steps:
1. Go to Device Manager then uninstall the Optical drive driver.
2. Press Windows + R together at the same time on your keyboard then once the Run box is open type in "regedit"
3. Once in Registry Editor expand HKEY_LOCAL_MACHINE
4. Expand SYSTEM after that expand CurrentControlSet
5. Expand Control and again expand Class.
6. Under Class please look for these set of number 4D36E965-E325-11CE-BFC1-08002BE10318 then click it.
7. After you...