I want to build an Ultimate Boot CD . Then if all goes well I want to build a Windows Ultimate Boot CD. Anyway on the UBD site they have 3 different downloads. An ISO image , self extracting zip and regular zip. Which should I download? Then before I make the CD what do I do with what I have downloaded? I know this may be stupid questions but I have never done anything like this before and I want to learn. Thank you for the help.