I have a ND-1300A (running on XP) and it started out working fine, then it simply died. I can still burn CDs but I can get it to burn DVD anymore. I'm using NERO and when I try to copy a DVD it blanks out the write DiskAtOnce option box. I get similar messages when I try to burn a DVD with other software, and with different disk brands (and speeds). I thought something might have monkeyed about with my ASPI settings to I tried to replace them and now as far as I can tell they're OK but my DVD burning days seem to be over. Any ideas are welcomed!!!