Optorite DD0401 no longer reads dvd!



I recently was trying to burn a dvd and suddenly it stops right in the middle. I reset and tried putting in a dvd, and it would not read… it would light up green trying to read, but I didn’t hear the usual sounds you would hear from the drive… It will still read retail audio cds… but not retail dvd or burnt dvd. Any suggestions? If it is dead, this makes two optorites to die in 6 months!