I'm having a problem with my external DVD drive. It's a memorex external usb drive, and i can't quite pinpoint what exactly the problem is. When i have a disc in the drive, I can play games and what not. Sometimes when i put a disc in, it just doesn't do anything. I tried to burn a copy of ubuntu onto a disc alcohol 120% didn't detect a dvd in the drive until i opened and closed it a couple times. Also when I finally got the dvd to burn, it wouldn't boot. This is extremely frustrating, can anyone help me out?