If the disc is not recognized, press Windows + Pause/Break key combination and open Device Manager. Expand the Disc drives list, right-click on the driver and select Uninstall. Reboot your computer, press Scan for hardware changes icon from Device Manager and wait Windows to retrieve the drivers. If it doesn't help, run the Fix It utility provided by Microsoft. It is developed to identify and repair CD or DVD drive issues, when you cannot burn or play CD or DVD discs. If you still have problems, I suggest you reinstall the application. Also, you can use an alternative program from Software Informer database.