dd if=/dev/hdX of=solaris.img

..

1) First run cdrecord -scanbus (as root), to see what device
   your cd recroder.  Mine is 0,6,0.

2) # cdrecord -v speed=4 dev=0,6,0 solaris_image.iso

..
taz:

 mkisofs -v -r -l -o /tmp/foo.img /tmp/foo
 cdrecord dev=0,4,0 -v speed=4 driver=teac_cdr50 -eject /tmp/solaris.img