I am having trouble writing to CD/DVD using the latest Nero (latest update). The buffer constantly runs out and uses full CPU power whilst writing making it impossible to do anything else. There seems to be a bottleneck retrieving data from the hard disk for writing. My PC is an AMD 2400+ with Win XP SP2, 512 MB RAM & 160GB drive (NTFS) with plenty of space. The Writer is a MSI 4xDVD, 24xCD with the current firmware update. Everything else seems to be fine apart from this. I have checked evrything is OK with SiSoft Sandra and cannot see any reason for the problems.
Yes, even at 16x the CD runs out of cache and the DVD often drops to 2x and still struggles. Previously, it ran at 4x with very little CPU usage but I can't think of anything that could have affected it since!