Indeed. 512 MB is borderline for XP with SP3.
and with Nero9 loaded only 110MB free.
And this is not enough. Modern CD/DVD writing software is using RAM as "extended buffer". ImgBurn, which many members are using, assigns 40MB by default. For a multiple burn, there is one instance of the software running, each using 40 MB.
I doubt, Nero9 is very different from that. Watch the buffers.
Plus, there is concurrent access to the same file (perhaps not applicable to NerÃ¶'s "multiple burn" option).
If hardware problem there is, then it would be with the IDE architecture.
Possibly. Your system has a SiS chipset which isn't known for performance.
Windows XP Pro SP2
XP SP2 is out of support. You should really consider installing SP3.
Mobile AMD Athlon XP-M, 1800 MHz, 64K L1 cache, 128K L2 cache
You can't expect much from that hardware, seriously. And no offense.
Disk Drive WDC WD800BB-00JHC0
An 80GB HDD isn't supposed to be fast, unfortunately.
Optical drive HL-DT-ST DVD-RAM GH22LP20 UDMA4
At least these seem to work (I have one of these also and at least my personal drive is very interface picky)
My system is as ancient as yours:
Athlon64 3000+ (1800 MHz max), Chipset Via KT800Pro, 2 x 1GB RAM, 320 GB WD Sata, a couple of ODD, XP Pro SP3.
These are the results of writing an ISO CD image to two drives at the same time, using two instances of Imgburn. Write speed selected was 32x for each drive.
Both drives are attached to the same IDE channel.
You may especially look at the buffers in these graphs: