I've been using Nero 5.x and a LG GCE-8320B drive for several months now.
Today I had a problem finalizing a CDR, where up until now it has worked OK. (I re-tested with a different brand CDR, and had exactly the same problem.)
Nero ended OK, with the data comparing successfully, but checking the CDR in Nero's CD Speed seemed to regard the resat of the disc beyond the data as all "bad" -- errors even beyond the disc capacity (74 min).
Specifally, in CD Quality Test, the are with data is OK, but after it ends, the yellow and red bars go to the top of the graph area. In Scan Disc - Surface Scan, the data area goes OK, but then it shifts into red, and eventually aborts the program. Since the disc was supposedly closed, there shouldn't be anything to test beyond the data area, anyway.
I've been using Nero 5.5.9.17 for a while, but last week I updated my ASPI from 4.71 to 4.72, in case that has any bearing on the issue.
Some info from the log that Nero keeps:
Windows NT 4.0
WinAspi: File 'Wnaspi32.dll': Ver=4.71 (0002), size=45056 bytes, created 07/17/2002 5:31:28 PM
ahead WinASPI: File 'G:\Program Files\ahead\Nero\Wnaspi32.dll': Ver=2.0.1.50, size=131072 bytes, created 07/27/2002 1:18:10 PM
Nero Version: 5.5.9.17
Recorder: <HL-DT-ST CD-RW GCE-8320B>Version: 1.04 - HA 0 TA 0 - 5.5.9.17