Zoo

Revision as of 16:38, 19 February 2020

ZOO was one of the many competing archive formats in the 1980s, and was based (originally, at least) on LZW compression. It had some popularity with Open/VMS and Amiga systems, but didn't ultimately win out over ZIP.

Identification

Files have bytes DC A7 C4 FD at offset 20.

Compression

There are three known compression methods:

• 0 - uncompressed
• 1 - LZW, also called "LZD"
• 2 - LZH

Software

• Konvertor
• zoo-2.10pl1.tar.gz
• zoo-2.10-3.src.rpm
• unzoo.c (Does not support LZW/LZD.)
• BOOZ102.ZIP - Booz (Barebones Ooz) (Does not support LZH.)
• Deark

Sample files

• http://cd.textfiles.com/20mnn/GRAPHIX/VT-MOTIO.ZOO
• http://cd.textfiles.com/aminet0294/AMINET/UTIL/ARC/ → *.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)