I got my Sony DRU-710A 2 months ago and burned few DVD disks by using Nero. Everything looks fine for me. However, one day when I use Nero to burn another DVD disk, Nero can't close the task while it is 100% for 10 mins. Then I restart the computer, but I can not read the CD anymore. Thus, I sent my drive back to Sony and exchange for a new one. After I got my new drive, I burned DVD disks again and everything looks great to me. By the way, after burning 5 DVD disks, my Nero can't close the task again. (damn...what's wrong?) Then I found out that Sony DRU-710A has problem with Nero software. Thus, I reflash my DRU-710A firmware and use other DVD software(VSO CD/DVD copy, Record NOW) to burn the DVD. Everything works fine till now. However, in Sony storage support FAQs, there is a section that is talking about having problem with Nero software. (http://sony.storagesupport.com/cgi-bin/sonysupport.cgi/QFtQ1XIeXH90yBe1o6M1pwyi44A3eJk2/faq/list/66). You can go and check it out. But I recommend you to use other DVD burn software. Don't use Nero with Sony DRU-710A anymore.