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 ...

When your small business creates a bootable disk for its Mac computers from ISO disk images, there's a difference between an ISO file and the disk image it contains. If you burn the file to a blank ...

So I'm not sure if anyone's ended up in the same spot as we did after ordering our Vista "media" from Microsoft. We recived 4 non-bootable upgrade CD's that did little for us. For the record I'm not ...