Saturn disk image is a tool for working with disk images (".iso" files). Saturn provides a graphical user interface, a dotNET component library, and a NAnt task, enabling software engineers to create disk images from build scripts.
JFileManipulator aims to be a collection of tools, which manipulate files in some way or the other, and is aimed at manipulating said files in batches. It for example allows you to write a text to a number of image files, all for a group of files.