Building a new video editing system. Windows 7 Professional, ASUS P9X79 PRO, and a new Pioneer BDR-207DBK, which was highly recommended in discussion groups. It worked fine as a CD reader to install Windows. After doing the Windows updates, I tried to read a commercial DVD and it failed. So ... I upgraded the firmware to 1.30, the latest on the Pioneer site, rebooted, and now I can read DVDs. Next I tried the main purpose for this unit - burning DVDs. It fails to burn DVD-R disks! I have been using Taiyo Yuden (now JVC) professional 8X blanks for 5 years or more, and have never had a coaster burn using my Benq drive on Win XP. I have had four (4) failures on the new system using these blanks on the Pioneer. I installed the Pioneer on my XP system and it won't burn DVD-R there either. I uninstalled the drive on my Win 7 system and reinstalled it. I found some old HP DVD+R blanks and to my surprise the Pioneer burned two (2) of those using different content just fine. I'm using Sony DVDA 5 and 6 as burning software. When attempting to burn a DVD-R, it takes a long time to start, the software indicates some progress, then it just gets stuck. After a half hour, it is still stuck at the same place. If I play the failed disks, I find it has burned the menu and about 2 minutes of content. What it has burned is excellent quality. I don't even want to try a BluRay burn until I get this DVD-R problem resolved. Does anyone here have any suggestions for me?