I'm having the same problem. My burner will not burn on DVD-R discs, but will burn on DVD+R.
I'm running Windows 2000 Professional, but have also tried on my laptop, running Windows 98, with no luck.
So, I don't have many of the files that are talked about in this thread, and don't know much about ASPI files to begin with. I will tell you what I know:
I have WINASPI32.DLL in C:Program Files\Ahead\Nero
also, the same file in C:Program Files\Ahead\NeroVision\NeroFiles
The following files are in my system32 folder:
Can somebody tell me what to try in order to fix this problem?