I tried to fix this problem using automatic Microsoft Fix It program but it did not help. After that I decided not to use automatic function and selected "Let me fix it myself": http://support.microsoft.com/kb/982116/en-gb
Scroll down and follow instructions according to your operating system (mine is Vista). I did it, deleted some items in registry as written and now CD/DVD rom is working perfectly. Good luck!
Andrius (e-mail: email@example.com)