normally these come in images. if not, u might have to get the utopia boot disk. basically, if its an image, u use whatever software its meant for. a disc juggler image or nero image. burn it. should work. also, some will let u put the roms on the same disc, the others, have to be on separate discs. the one i got was an image file, thats what u should look for. hope it helps somewhat, if not, try dcemulation.com cya