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FreeArc uses LZMA, prediction by partial matching, TrueAudio, Tornado and GRzip [7] algorithms with automatic switching by file type. Additionally, it uses filters to further improve compression, including REP (finds repetitions at separations up to 1gb), DICT (dictionary replacements for text), DELTA (improves compression of tables in binary data), BCJ (executables preproccesor) and LZP ...
PeaZip has full support for Brotli, Zstandard, various LPAQ and PAQ formats, QUAD / BALZ / BCM (highly efficient ROLZ based compressors), FreeArc format, and for its native PEA format. 7-Zip includes read support for .msi , cpio and xar , plus Apple's dmg / HFS disk images and the deb / .rpm package distribution formats; beta versions (9.07 ...
application/x-freearc FreeArc: Windows, Linux: Windows, Linux: Yes Open source file format developed by Bulat Ziganshin. A "FreeArc Next" version is under development which includes Zstandard support. .arj application/x-arj ARJ: Originally DOS, now multiple Multiple Yes Competitor to PKZIP in the 1990s, offered better multi-part archive ...
In PeaZip's native PEA format, and in FreeArc's ARC format, supported ciphers are AES 256-bit, Blowfish, [22] Twofish [23] 256 and Serpent 256 (in PEA format, all ciphers are used in EAX authenticated encryption mode).
Most lossless compression programs do two things in sequence: the first step generates a statistical model for the input data, and the second step uses this model to map input data to bit sequences in such a way that "probable" (i.e. frequently encountered) data will produce shorter output than "improbable" data.
REP is an alternative implementation of rzip algorithm by Bulat Ziganshin used in his FreeArc archiver as preprocessor for LZMA/Tornado compression algorithms. In FreeArc, REP finds large-distance matches and then LZMA compress the remaining data.
ARC is a lossless data compression and archival format by System Enhancement Associates (SEA). The file format and the program were both called ARC. The format is known as the subject of controversy in the 1980s, part of important debates over what would later be known as open formats.
This is a listing of open-source codecs—that is, open-source software implementations of audio or video coding formats, audio codecs and video codecs respectively. Many of the codecs listed implement media formats that are restricted by patents and are hence not open formats.