bzip2 1.0.2

bzip2 is a freely available, patent free (see below), high-quality data compressor.
It typically compresses files to within 10% to 15% of the best available techniques (the PPM family of statistical compressors), whilst being around twice as fast at compression and six times faster at decompression.

(Note that this is a command-line tool, to be run from Terminal.)
This software was distributed by its author under the terms of the GNU GPL. I have not modified the source in any way, and am simply redistributing the binaries, help files, and library files in a .mpkg installer.