i wouldn't make an iso if i could help it. use clonecd, and if you havea compatible cdrw drive, it'll make a perfect backup, otherwise you'll need to download a crack. even then, if your drive isn't capable, clonecd will let you emulate the cd protection, and run it without a crack, i believe. i don't know, because i have a lite-on drive, and they do all protections afaik. asus ones are good too.