I have the same problem with a external sony burner, drx700ul, roxio titanium
dosen't burn, everything else works fine, on vista I search divice manager
and the problem I found was that on device manager/dvd/cd-room drives, then
you're burner, and driver file details the dlacdbhm.sys it's disable.. cuse
incompatibility.. I thinks this is blocking the drive... maybe it's the
driver software it self, try contacting your burner manufacturer...
> This is driving me crazy. I am using Vista 64-bit and cannot seem to burn
> anything at all. My burner reads everything fine (plays movies, install
> disks, etc.) but I can't write anything. I have tried using Windows Movie
> Maker as well as Nero 188.8.131.52, always get the same result. My burner is a
> Samsung SH-S182M. I have also tried my old burner (Sony DRU-710A) and I get
> the same result. The Sony works fine on my other computer running XP Home. It
> is like the burner can't finish the burn. Sometimes the disk is actually
> burnt (I can see the burning on the disk) but it never gets finalized (or
> concluded, or whatever) and other times the disk just remains blank. The
> error I usually get is to the effect to place a blank disk in the burner,
> even though one is in there. Other times the error is " Cannot create the
> DVD. The DVD cannot be burned because an error occurred. Try using another
> blank disc and make sure that your DVD burner is connected and working
> properly. Learn more about this problem. "
> Any ideas???