I have a Dell. My Roxio prog doesn't recognize a discs

That means there is something wrong with your driver. If it cannot read any disc you inserted then the problem exist in your drive. You don't need to reinstall any driver as long as you can see your drive being recognized by your computer and you can see your drive in the My Computer with a letter indicated on it. Your drive is in need for a replacement. This problem indicates a hardware failure specifically the lens of the device.

Hope this helps..