lzma LZMA uses lossless data compression along with various algorithms. Been in development since 1996, it was originally used by the 7-zip software for computers like the 7z format. The algorithm uses a dictionary-like compression scheme that has similarities to the algorithm created by Jacob and Abraham Lempel in 1977, the LZ77 algorithm. The LZMA algorithm boasts an increased ratio of compression and a 4-gigabyte variable dictionary sized compression. The LZMA decompression speed is the same as other compression software algorithms.
tbz2 .bz2 is the filename extension associated with the bzip2 data compression format. It is an open source data compression and decompression tool developed by Julian Seward in 1996. The compression and decompression format is cross platform compatible and comes bundled with versions of Linux and UNIX. The latest of Bzip2 exists as an open source library for download and customization. Earlier versions have executables that can be run directly on Microsoft Windows.