There's no manual. Maybe you don't need a manual. I was able to create an iso image of a large essential folder without one, then burn it to CD. There was nothing intuitive about it. What saved my bacon was the program itself -- it created missing control files and filled in necessary information automatically, while telling me what I dunce I am for forgetting that bit. The only difference between this program and the way Mac OS X works out of the box is the know-it-all unprofessional geeky attitude, but hang it all -- the utility itself is far more than just fine. I'd certainly recommend this, but it requires a certain derring-do to approach. Fear not, or not as much as you might think, anyway. And it's free. Why is that? That worries me.