I've been using this drive since the first of the year, and I've burned about 30 DVDs with it using Nero 22.214.171.124. I'm using this drive to backup our DVDs so the originals don't get trashed. Today my drive will not read DVDs, only CDs. When I place a DVD in the 1620, and it does the follwing sequence of yellow LED flashes and clicking sounds: blink 7x, click, blink 7x, click, blink 7x, click, blink 5x, off. This happens with blank and burned DVD+RWs and pressed DVDs. The really strange thing is that blank and burned CD-Rs and pressed CDs load fine.
I have been using the B7T9 since I got the drive. I tried today to back up to B7P9, but that did not change this DVD reading issue. I checked my bios, device manager, and Nero installation and everything appears to be setup properly. Is there something I missed? Any help would be greatly appreciated!