http://sources.redhat.com/bzip2/index.html
What is bzip2?
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.
http://www.vsu.ru/~vy/prj/bzip2/bzip2-1.0.2-os2-bin.zip
Source: OS2VOICE