ARJ
From Just Solve the File Format Problem
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** {{CdTextfiles|simtel/simtel20/MSDOS/ARCHIVRS/ARJ241A.EXE|v2.41a}} (1993-07-10) | ** {{CdTextfiles|simtel/simtel20/MSDOS/ARCHIVRS/ARJ241A.EXE|v2.41a}} (1993-07-10) | ||
** {{CdTextfiles|simtel/stmsdos9709/disk1/DISC1/ARCERS/ARJ250A.EXE|v2.50a}} (1995-12-12) | ** {{CdTextfiles|simtel/stmsdos9709/disk1/DISC1/ARCERS/ARJ250A.EXE|v2.50a}} (1995-12-12) | ||
| + | ** [http://www.filegate.net/compress/arj271.exe v2.71] (1999-12-19) | ||
** [https://www.sac.sk/download/pack/arj286.exe v2.86] (2012-01-02) | ** [https://www.sac.sk/download/pack/arj286.exe v2.86] (2012-01-02) | ||
* ARJ32 - Official compression/decompression software for Windows console | * ARJ32 - Official compression/decompression software for Windows console | ||
| − | ** [https://www.sac.sk/download/pack/arj32320.exe | + | ** [http://www.filegate.net/compress/arj32v3j.exe v3.04] (1999-12-19) |
| + | ** [https://www.sac.sk/download/pack/arj32320.exe v3.20] (2012-01-02) | ||
* UNARJ - Official software, decompression only | * UNARJ - Official software, decompression only | ||
** {{CdTextfiles|simtel/simtel20/MSDOS/ARCHIVRS/UNARJ241.ZIP|v2.41}} (1993-04) - Source code + DOS binary | ** {{CdTextfiles|simtel/simtel20/MSDOS/ARCHIVRS/UNARJ241.ZIP|v2.41}} (1993-04) - Source code + DOS binary | ||
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* [http://arj.sourceforge.net/ Open-source ARJ] | * [http://arj.sourceforge.net/ Open-source ARJ] | ||
* [[Konvertor]] | * [[Konvertor]] | ||
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| + | ''Ed. note: Some newer versions of ARJ/ARJ32 have a long delay (2 minutes?) when you run them.'' | ||
== Sample files == | == Sample files == | ||
Revision as of 17:48, 3 July 2020
ARJ is a compressed archive format, and associated software. It was developed by Robert Jung.
ARJ was one of the leading compression tools during the 1990s. While it was a bit slower than PKZIP, it sported many more options, some of which were unique during that time (archives over multiple disks/volumes, fine-tuning of the compression algorithms used based on the data that was being compressed, recovery records to recover from simple transmission errors, etc.).
See also:
Contents |
Identification
An ARJ archive starts with signature bytes 0x60 0xea.
The full identification algorithm used by the ARJ software is given in its technical documentation.
Specifications
- The ARJ/UNARJ distributions include detailed format information, in a file named TECHNOTE.TXT or similar.
- A copy of the 2001-09 version (with an addendum of some sort)
- The ARJ Archive File Format, from fileformat.info and Corion.net
Software
- Official homepage of ARJ software
- ARJ - Official compression/decompression software for DOS
- ARJ32 - Official compression/decompression software for Windows console
- UNARJ - Official software, decompression only
- 7-Zip
- Open-source ARJ
- Konvertor
Ed. note: Some newer versions of ARJ/ARJ32 have a long delay (2 minutes?) when you run them.
Sample files
- http://cd.textfiles.com/20mnn/HPTEXT/PHRACK/
- The Silver Collection CDs have many ARJ files
