I picked up one of these burners after reading all the rave reviews but haven't been able to do anything with it. I keep getting "invalid parameter" errors when I try to burn to it (have tried a variety of media). Worse, when I put a commercial DVD in it and it tries to autoplay, it crashes my system with a "Windows has shut down to protect you from a serious error" message. I DL'd & ran Sony's drive check utility and it reports the drive is working properly, as does Device Manager. It replaces a Lite-On drive that had no problems at all. I'm stumped. I've emailed Sony's tech support but haven't yet heard back. Anyone have any suggestions of things I might try? Otherwise this puppy's gotta to back to Amazon.