The "Bootable" legacy ISO you've used is in fact not bootable, it relies on CDROM emulation provided by BIOS. VMs don't usually do this sort of emulation. If you set the guest OS to something like ...

I have done some research and it sounds like there isn't a formal standard for BOOTABLE DVDs, but that it usually works for most systems.<BR><BR>Can someone please explain what it would take to create ...