More multiboot madness



On my quest for a simpler multiboot method, I’m trying to find out if one can edit the boot catalog and boot images files on a CD. I can see the menu information for some multiboot CDs in the “Microsoft Corporation.img” file (or a .bif file if I have UltraISO dump the boot files), but I don’t know how to edit these files. Is there any software out there that will assist in modifying the boot files?