I bought a DW-U10A. I couldn't get it to work with TDK dvd-r's (I've tried 6-7 times, and plenty of failed simulations). So I flashed it to a DRU-500A, then updated the firmware to 2.0F. It still doesnt work, so I go out and get some Fuji dvd-rw's. I burn one of the rw's perfectly fine. I attempt to burn a TDK dvd-r again, it fails (and when I say it fails, I mean it writes the lead-in, then gives me an error, either queue failure or seek failure usually). I'm running out of ideas, any help would be greatly appreciated.