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2. 7-Zip - Wikipedia

   en.wikipedia.org/wiki/7-Zip

   7-zip.org. 7-Zip is a free and open-source file archiver, a utility used to place groups of files within compressed containers known as "archives". It is developed by Igor Pavlov and was first released in 1999. [2] 7-Zip has its own archive format called 7z, but can read and write several others.

3. bzip2 - Wikipedia

   en.wikipedia.org/wiki/Bzip2

   bzip2 is a free and open-source file compression program that uses the Burrows–Wheeler algorithm. It only compresses single files and is not a file archiver. It relies on separate external utilities for tasks such as handling multiple files, encryption, and archive-splitting. bzip2 was initially released in 1996 by Julian Seward.

4. Comparison of video codecs - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_video_codecs

   Α video codec is software or a device that provides encoding and decoding for digital video, and which may or may not include the use of video compression and/or decompression. Most codecs are typically implementations of video coding formats. The compression may employ lossy data compression, so that quality-measurement issues become important.

5. ZIP (file format) - Wikipedia

   en.wikipedia.org/wiki/ZIP_(file_format)

   A ZIP file may contain one or more files or directories that may have been compressed. The ZIP file format permits a number of compression algorithms, though DEFLATE is the most common. This format was originally created in 1989 and was first implemented in PKWARE, Inc. 's PKZIP utility, [2] as a replacement for the previous ARC compression ...

6. RAR (file format) - Wikipedia

   en.wikipedia.org/wiki/RAR_(file_format)

   RAR v3.93 is the last version that supports MS-DOS and OS/2 on 32-bit x86 CPUs such as 80386 and later. It supports long file names in a Windows DOS box (except Windows NT), and uses the RSX DPMI extender. [10] RAR v2.50 is the last version that supports MS-DOS and OS/2 on 16-bit x86 CPUs such as Intel 8086, 8088, and 80286. [10]

7. PeaZip - Wikipedia

   en.wikipedia.org/wiki/PeaZip

   PeaZip. PeaZip is a free and open-source file manager and file archiver [5] for Microsoft Windows, ReactOS, [6] Linux, [7][8][9] MacOS [10] and BSD [11][12] by Giorgio Tani. It supports its native PEA archive format [13] (supporting compression, multi-volume split, and flexible authenticated encryption and integrity check schemes) and other ...