Read the CD-Writing-HOWTO and the "/usr/doc/mkisofs-*/README.eltorito" files.

It explains how to make a bootable (eltorito) CD.

Note: You should not try to put more than 620MB on the CD, file system overhead

Here is a brief example of how to build the CD from the documentation.

# export CDROOT=/home/user/images/test-cd/
# mkdir $CDROOT

Put the CD's contents into $CDROOT, and make a boot directory if you
havent already.

# dd if=/dev/fd0 of=$CDROOT/boot/boot.img
# cd $CDROOT
# mkisofs -b boot/boot.img -c boot/boot.catalog -o ../bootcd.iso .

The boot.catalog file should be created automaticaly, and the CDs
iso9660 image
will be created into the ../bootcd.iso file.

cdrecord -v speed=2 dev=0,6,0  -data  cd_image
cdrecord -v speed=8 dev=1,0,0 -pad -data bdiemc_disk1.iso
-----------------------
nice --18 cdrecord -eject -v speed=2 dev=0,6,0 -data -pad binary-i386-1.iso
-----------------------	Kernel 2.6
cdrecord -v speed=2 dev=/dev/hdc -data /home/images/KNOPPIX_V3.9-2005-05-27-EN.iso

cdrecord -prcap
cdrecord -v speed=24 driveropts=forcespeed KNOPPIX_V3.9-2005-05-27-EN.iso