Taken directly from the FAQ file in the zip:

Q: What is this tool/library able to do? A: First, you can read/write sectors from/to an ISO file. You can also read information about an ISO file. You can extract/insert files from/to an ISO file. Depending upon the mode you will be using, it will compute the right CRC/ECC code for the given sector. Everything I just said can be done in the following (eventually mixed) modes: MODE_1, MODE_2, MODE_2_FORM_1, MODE_2_FORM_2. Additionally, it is able to produce patches (.ppf files) instead of modifying the ISO file, saving you time when you use the right software. Actually, it is quite “oriented” on the MODE_2* formats, since it is the PSX’s format. And now, it is able to interpret LUA scripts.

Q: So, what is the goal of this software? A: To modify (patch) ISO images. Nothing else. And of course I want it free, opensource, and working on my preferred operating system, Linux. I can actually compile it for windows, using the mingw32 system (the same you can find in DevC++)

This tool is nice for inserting enlarged files, adding files to the image, and adding subtitles to video files, all while retaining a decent patch size.

Originally served at: http://www.nobis-crew.org/cd-tool