I'm working on a Multiboot DVD and I am using CDImage to create the ISO file. The content of my DVD is getting bigger and bigger. I'm finding that it takes a very long time to test changes to the ISO because it takes a very long time to create a new ISO after I have just made changes TO JUST ONE FILE! I was wondering if there's a program that can detect changes in an a directory and compare it to the ISO and only update the changed files. This program doesn't have to be able to "optimize" the iso because I can do it later with UltraISO.
Edit: Hopefully this program is command line based or you can save the configurations.