Using the is Microsoft Fixit: Your CD or DVD drive can't read or write media
“Automatically diagnose and repair problems with your CD or DVD drive when trying to read or burn media”
It fixes problems such as
“A class specific or device specific driver is missing or corrupt A CD or DVD drive cannot be found or is not connected The CD or DVD drive is experiencing a problem that prevents it from working properly The CD or DVD drive is not accessible via an assigned drive letter”
Read other troubleshooting problems for CD and DVD drives
Why doesn't my CD or DVD drive work?
Troubleshoot problems with DVDs and movies in Windows Media Center
Burning a CD (Video tutorial)
Open the Windows Media Player DVD troubleshooter
Rob