Help - 3500AG doesn't read anything

Hi, I’ve been using the 3500AG for years, and today while I was burning a DVD with Nero, an error popped up. Then after that my DVD not working anymore. I tried to uninstall and reinstall it, unplug the cable and let Win Vista installed it automatically but it still didn’t work. However, i can see my drive in the Device manager. Do i need a new one or is there any way to fix it? thanks

Try to clean the drive/laser.