**Lempel-Ziv-Markov-Algorithm**

Compression algorithm [http://en.wikipedia.org/wiki/Lempel-Ziv-Markov_chain_algorithm], much better compression ratios than [zip] or [bzip2].
The base libraries available under [CPL], [LGPL] with exceptions that allow you to link statically the libraries as long as they are unmodified. There is a proprietary license available as well. Would be interesting to have [tclkit] version that supports this compression format.

**LZMA SDK**

A software development kit [http://www.7-zip.org/sdk.html] is available for [Windows] and [Linux], supporting [C++], ANSI [C] (decompression only), [C#], and [Java].

There is a [Python] binding available [http://www.joachim-bauch.de/projects/python/pylzma/], but development seems stalled.

''LZMA Utils'' [http://tukaani.org/lzma/] seems to be an attempt to bring this algorithm into shape to be compatible with commonly known command line tools like [gzip] and [bzip2]. Furthermore it provides a decompression only library with a [zlib]-like interface.

**Users**

The first and most prominent user is the [7z] archive format [http://www.7-zip.org/].

<<categories>> Compression | Algorithm | (L)GPL Licensed