Is DMA enabled?Are you running anti viral software or any other software that might interupt the smooth transmission of data to the burner?You might also try to move it around on the IDE bus.I would say maybe hard drive fragmentation but that wouldnt make it that slow. Also it may be the brand of media you are using. My Samsung is pretty picky about media.
Pioneer dvr-108,NEC 3540,BenQ 1640,LiteOn 1693S
Intel pentium D 930 oc to 4.2 ghz
2 gb ddr2 1066 mhz ram
sb audigy 2 zs platnum
hardware mpeg2 encoder card
Conscience is what hurts when everything else feels so good