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/0bb9c12c9a1cdb37ea0e3a14791dedb26d490933f951082456e2949d545297ad-primary.sqlite.bz2