Bootable Floppy ISO

I had a bootable floppy disk saved as an IMG file that I wanted to make into a bootable ISO image (don't ask why). I did so on Ubuntu using the following command (it'll probably wrap here but it's a single line):

mkisofs -pad -b bootdisk.img -R -o bootdisk.iso bootdisk.img

bootdisk.img is the source IMG file.
bootdisk.iso is the resulting ISO file.


Source: http://www.troubleshooters.com/linux/floppy_image_on_cd.htm