I currently own a Sony DVD-RW model DWU10A. I never could get it to burn dvd-r's, so I upgraded the firmware to Sony DRU500A ver. 2.1. I still cannot get it to burn dvd-r's. I've used Taiyo Yuden & TDK discs. I've tried Nero, Ashampoo, and Easy DVD Shrink software, all to no avail. I've used Sony's DRIVECHECK and it passed the WRITE/READ check with no problems. Any help would be greatly appreciated.