Hi Micha,... On Thu, 19 Feb 2004 04:01:03 +0200 Micha Feigin <michf@post.tau.ac.il> wrote: > How do I change things inside an iso9660 file system (cdrom You don't. ISO9660 per se is a read-only filesystem with no abilities to write to it. If you want to modify / add files, you'll have to copy the stuff from the iso to somewhere in your file system, do your modifications there and use mkisofs to build a working image again. Cheers, Kris