I have a Mad Dog Multimedia MD-16XDVD9A4 running on WinXP Pro x64. It has always worked fine for me until last week when it started seeing DVD-RW disks as blank CD disks. Could you please help me out with this one? I've tried multiple disks from 2 different packs, a firmware update on the drive, and a Windows update. I've also uninstalled and reinstalled the drive with no luck.