Ultimate Boot CD

Finally burned a copy that does boot. Thanks.

CD has been burned from .iso file using NERO. Files appear to be there but the CD will not boot even if the bios ic changed to CD first. Any idea how to make it bootable?

I am new to this program disk. I burned the .iso file to a CD. Is the CD supposed to boot up when the bios is changed to "Boot CD first"? or is there something that I have to add to the cd to make it bootable?