LZMA Compression

WinTar can automatically read and write single LZMA format files, or 7z format archive that compressed by LZMA compression method archives.

The Lempel-Ziv-Markov chain-Algorithm (LZMA) is an algorithm used to perform data compression. It has been under development since 1998[1] and is used in the 7z format of the 7-Zip archiver. This algorithm uses a dictionary compression scheme somewhat similar to LZ77 and features a high compression ratio (generally higher than bzip2 [2][3]) and a variable compression-dictionary size (up to 4 GB).

The LZMA uses an improved LZ77 and a Deflate compression algorithm, backed by a range encoder. Streams for data, repeated-sequence size and repeated-sequence location seem to be compressed separately.[

LZMA is effectively deflate (zlib, gzip, zip) with a larger dictionary size, 32MB instead of 32kB. LZMA stands for Lempel-Ziv-Markov chain-Algorithm, after string back-references have been located, values are reduced using a Markov chain range-encoder (aka arithmetic coding) instead of huffman.

Related file formats

---

•  gzip Compression

•  Bzip2 Compression

•  Compress Compression

•  Zip Compression

•  CAB Compression

•  Huffman Coding compression