jpegoptim is a utility for optimizing JPEG files. It provides lossless
optimization (based on optimizing the Huffman tables) and "lossy"
optimization based on setting a maximum quality factor.
jpeginfo is a command line tool used to generate informative listings of JPEG files, and also to check JPEG files for errors. The program also supports automatic deletion of broken JPEG files.
An accounting/ERP application and framework.
An ISO 9660 multi-session CD/DVD/BD filesystem manipulator.