I have a 16x DL DVD burner in my work machine (XP SP3). I'm using 8x TDK DVD+R media. The first dozen or so disks burned fine using Nero, but after that I started to coaster every disk. I asked Nero to calculate the maximum speed, and it calculated it at 4x. This worked for a few disks, then the same issues. I'm currently burning at 1.2x. I've since tried other brands and full 16x compatible disks, I can't get my burn speed to be recognized as any faster than what it's currently at. I've tried uninstalling Nero. I've tried burning directly in Windows, and also tested an MP3 CD in iTunes, and no luck. Any suggestions, short of reinstalling Windows, would be great!