Rank: Wiz
Rating: 84%, 63 votes
This may not be a solution but just reboot your system with the disc inserted in the drive.This generally makes the Boot time much longer but there are 80% chances of your disc being detected.
Please try this... Mean while i will come up with a solution. Also are you sure if your drive is compatible with all the DVD formats like +R,-R,+/-R etc..?