4X DVD Recording under AMD Duron 600MHz

256MB PC133
ML810LR motherboard

$ time growisofs -speed=10 -Z /dev/hda=test4700m.iso

Executing 'builtin_dd if=test4700m.iso of=/dev/hda obs=32k seek=0'
/dev/hda: "Current Write Speed" is 4.1x1385KBps.
 19267584/4702013440 ( 0.4%) @3.8x, remaining 24:18
 37486592/4702013440 ( 0.8%) @3.8x, remaining 18:39
   ....
4674682880/4702013440 (99.4%) @3.9x, remaining 0:04
4693098496/4702013440 (99.8%) @3.9x, remaining 0:01
builtin_dd: 2295920*2KB out @ average 3.9x1385KBps
/dev/hda: flushing cache
/dev/hda: updating RMA
/dev/hda: closing session

real    15m11.160s
user    0m6.736s
sys     2m27.657s