That was my first thought, so I bought an external USB DVD burner. No change.
Bummer. My only other suggestion is to not discount an update or some other add-on hosing some system files. Try system restore as far back as you can. Otherwise, it sounds like you’re going to have to have someone look at it if the other replies aren’t of any help.
I installed some add-on at work that was for another purpose and ever since Media Player won’t load. you just never know. In my case I just don’t have the time to deal with it and it only affects Media Player.