when i wrtie cd's using nero 4/5 of the time i get a blue screen saying STOP: 0x0000007E(0xc00000005,0x805368A0,0xf89cd8fc,0xf89 cd5fc)

Beginning dump of physical memory.

It happens when i copy from my HDD or from another drive
Specs:
Athlon 800
ECS K7VZA m/b
512 sdram
gf2 mx 400
liton 32x cd-r