\_ SMTP quoth Derek Neighbors on 11/25/2002 10:12 as having spake thusly: \_ \_ I think its a matter of getting the 'source' for the ISO. Then you add \_ what you need and rebuild the ISO. \_ \_ i.e. If I understand it correctly an ISO is a like a 'binary' program. In \_ that you dont modify the binary. Instead you alter the source and \_ recreate the program. Nah, it's simpler than that. Well, for some versions of simpler. mount cd cp -a /mnt/cd /tmp/myhappytestdir umount cd eject [edit files in /tmp/myhappytestdir] mkisofs -rtm /tmp/myhappytestdir mount -o loop mynewdisk.iso /tmp/spot # to test cdrecord -rtm mynewdisk.iso reboot It might work best if you have a rewriteable disk until you get the hang of the burn + bootableness. YMMV. To be pendantic, the cdrom is in an iso9660 format, akin to ext2, ext3, reiserfs and so on. There's nothing inherently magical about it other than if you're careful, everyone and their brother can read it successfully on their drive. AFIAK, there's no reason other than common sense that you couldn't write ext2 or other fs to cdrom. David Real programmers "cp /dev/audio a.out" and whistle into the mike. -- evilgwynie