Zoo
From Just Solve the File Format Problem
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* '''Fiz''' - Analyze damaged Zoo files | * '''Fiz''' - Analyze damaged Zoo files | ||
* '''Stuff''' - File finder | * '''Stuff''' - File finder | ||
| + | * '''Sez''' - Self-Extracting Zoo utility | ||
== Identification == | == Identification == | ||
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== Compression == | == Compression == | ||
| − | + | Compression methods: | |
{| class="wikitable" | {| class="wikitable" | ||
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* Zoo - DOS binaries | * Zoo - DOS binaries | ||
** {{CdTextfiles|carousel344/013/ZOO121.ZIP|v1.21}} (1986-09-21) | ** {{CdTextfiles|carousel344/013/ZOO121.ZIP|v1.21}} (1986-09-21) | ||
| − | ** {{CdTextfiles|hof91/ARC/ZOO201.EXE|v2.01}} (1988-08-25) | + | ** {{CdTextfiles|hof91/ARC/ZOO201.EXE|v2.01}} (1988-08-25) - Also includes Fiz 2.0 and Stuff 1.0 |
** {{CdTextfiles|simtel/simtel20/MSDOS/ARCHIVRS/ZOO210.EXE|v2.10}} (1991-07-09) | ** {{CdTextfiles|simtel/simtel20/MSDOS/ARCHIVRS/ZOO210.EXE|v2.10}} (1991-07-09) | ||
| − | * {{CdTextfiles|simtelctc/disk1/ZOO/BOOZ20.ZIP;1|Booz | + | * {{CdTextfiles|simtelctc/disk1/ZOO/BOOZ20.ZIP;1|Booz 2.0}} - Extractor; includes source code and DOS binary |
| − | * [http://archives.math.utk.edu/software/multi-platform/gap/util/unzoo.c unzoo.c] (Does not support | + | * [http://archives.math.utk.edu/software/multi-platform/gap/util/unzoo.c unzoo.c] by Martin Schoenert (Does not support LZD.) |
* {{Deark}} | * {{Deark}} | ||
| + | * {{CdTextfiles|carousel344/013/LOOZ210.ZIP|Looz 2.1}} | ||
| + | * {{CdTextfiles|carousel/013B/OOZ130.ZIP|Ooz 1.30}} | ||
| + | * {{CdTextfiles|microhaus/mhblackbox3/ARCHIVER/SEZ230.ZIP|Sez 2.3}} - Makes self-extracting archives | ||
| + | * {{CdTextfiles|simtelctc/disk1/ZOO/ATOZ112.ZIP;1|Atoz 1.12}} - Conversion helper | ||
== Sample files == | == Sample files == | ||
Revision as of 19:46, 4 January 2021
Zoo is a compressed archive format developed by Rahul Dhesi. It was one of the many competing archive formats in the 1980s, and was based (originally) on LZW compression. It had some popularity with Open/VMS and Amiga systems, but didn't ultimately win out over ZIP.
Contents |
Discussion
The Zoo software encompassed several different utilities, which were sometimes distributed individually, and which had their own version numbers.
- Zoo - The main program
- Ooz - Extractor
- Booz (Barebones Ooz) - Extractor; some versions can also list files
- Looz (Ooz with List) - Extract/list/execute
- Atoz - Helper utility for converting other formats (ARC, LBR) to Zoo
- Fiz - Analyze damaged Zoo files
- Stuff - File finder
- Sez - Self-Extracting Zoo utility
Identification
Files have bytes DC A7 C4 FD at offset 20.
Compression
Compression methods:
| ID | Name | Description |
|---|---|---|
| 0 | No packing | Uncompressed |
| 1 | LZD | LZW |
| 2 | LZH | LZ77+Huffman. Nearly identical to LHA's "lh5" method. A small difference is that Zoo defines a way to mark the end of data. |
Software
- Konvertor
- zoo-2.10pl1.tar.gz
- zoo-2.10-3.src.rpm
- Zoo - DOS binaries
- Booz 2.0 - Extractor; includes source code and DOS binary
- unzoo.c by Martin Schoenert (Does not support LZD.)
- Deark
- Looz 2.1
- Ooz 1.30
- Sez 2.3 - Makes self-extracting archives
- Atoz 1.12 - Conversion helper
Sample files
- http://cd.textfiles.com/aminet0294/AMINET/UTIL/ARC/ → *.ZOO
- http://cd.textfiles.com/garbo/PC/ → .../*.ZOO
- http://cd.textfiles.com/geminiatari/ZIP/PROGRAM/ → *.ZOO
References
- Wikipedia: Zoo (file format)
- The ZOO Archive File Format from Corion.net, via FileFormat.info
- Archive format info, including ZOO
- ZOO file header format (among other archive types)
- The zoo Archiver User's Guide, by Bill Davidsen (for Zoo 2.01)
