Short: Bzip2 xpk compression library (68K/PPC) V1.4 Author: oliver.roberts@iname.com (Oliver Roberts) Uploader: oliver.roberts@iname.com (Oliver Roberts) Version: 1.4 Type: util/pack Requires: OS 3.0+,xpkmaster.library,WarpUp Release 4 Julian Sadler's 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. xpkBZP2.library uses the same compression algorithm as bzip2, and allows you to compress files with the same high crunch factor as bzip2, but under the XPK interface. In summary, xpkBZP2.library offers generally a very high compression ratio, typically around 70-90%. Of course, there's no such thing as a free lunch, and the downside is that the compression routines require lots of memory, although there are modes available which use less memory, at the expense of compression efficiency. Changes since previous release: - Added a 68k version (in 020, 030, 040 and 060 flavours) to accompany the original WarpOS version. - Updated with libbz2 1.0.0 (which was released yesterday), providing enhancements including: - Faster compression: 10%-25% faster. - Much better robustness to corrupted compressed data. - Recalculated the mode benchmarks using the 060 version.