Linux Install

Ok, I downloaded the Redhat Linux 7.2 i386 .iso CD images from RedHat’s FTP site. I opened the images using ISObuster and copied them to CD-Roms. Now, I can boot to the Linux boot.img file but after I select Language and Keyboard it asks for the CD-ROM, the CD-Rom is in the drive and I keep getting, “Could not find Red Hat CD-ROM” What is going on here, I wasted 8 CD’s trying to fix this. How the hell do I install Linux? PLEASE HELP! I would GREATLY appreachiate it!