[ 原始碼： bzip2 ]
套件：libbz2-1.0（1.0.8-5 以及其他的）
high-quality block-sorting file compressor library - runtime
This package contains libbzip2 which is used by the bzip2 compressor.
bzip2 is a freely available, patent free, data compressor.
bzip2 compresses files using the Burrows-Wheeler block-sorting text compression algorithm, and Huffman coding. Compression is generally considerably better than that achieved by more conventional LZ77/LZ78-based compressors, and approaches the performance of the PPM family of statistical compressors.
The archive file format of bzip2 (.bz2) is incompatible with that of its predecessor, bzip (.bz).