> > C:\MyBootCD>mkisofs -relaxed-filenames -d -D -J -b bcdwboot.bin > -no-emul-boot -boot-load-size 4 -o bcdw201a.iso ./ > The -b bcdwboot.bin part of the above command indicates "bcdwboot.bin" is being booted by the bios, not isolinux. You will need to be using isolinux before we can be much help.