ISO Master 1.3.5
ISO Master is an open-source, graphical CD image editor that runs on Linux; and bkisofs, the underlying library used for reading, modifying and writing ISO images.
The hard part of this project is the library for working with ISOs (bkisofs). My hope is that people will like this library enough to make their own GUIs using it. So my choice of widget set (GTK, that is) will not necessarily annoy too many people.