bzip2 is a freely available, patent free, 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.
acquired package info from repodata DB: repodata/20e3d701abe6153959c07e23f649a942315c0a527c927d709ed6ce10bdf6aed0-primary.sqlite.bz2