I need some help with this ones, ive already wasted about 8 cds because i know nothing about DOS.

I need to make a Dos Boot CD, Not one that emulates itself as a floppy, but an actual cd, that i can put my own files on to be used while in DOS, so i guess it needs cd-rom support too. Problem - The computer i plan to run this on has no hard drive in it.

Can ANyone help me out here?