A program that will help you figure out that zip password that you just can’t seem to recall. In a tarball.

read more from " ZipCracker "

by Subhasis Saha. A survey paper on various techniques of image compression.

read more from " Image Compression - from DCT to Wavelets : A Review "

by David Salomon. This article discusses an approach to the unique problem of compression sparse binary strings.

read more from " Prefix Compression of Sparse Binary Strings "

An article in the Spring 2K issue of Crossroads, the ACM student publication.

read more from " An Error-Controlled Octree Data Structure for Large-Scale Visualization "

An article from the ACM Crossroads student publication. This article shows how to use some of the built-in classes in the JDK to create and access compressed files and streams.

read more from " Java I/O and Comrpession by Matt Tucker "

Crossroads is the student publication of the ACM. This issue concentrates on data compression, and includes several very worthwhile articles.

read more from " ACM Crossroads Spring 2000 Issue - Data Compression "

Laurent Balmelli from the neutral country of Switzerland has some C++ code to do some interesting quadtree processing. He would like you register if you are going to use the code, but this is not mandatory. This code is being used by over 100 registered users, and has at least been accessed by as many […]

read more from " Efficient Quadtree Code: Spatial Linear Quadtree "

Mary Holly Johnson wrote a couple of papers on something called ECVQ, which I’m guessing is a type of vector quantization. This ftp directory has a bunch of C code that probably implements the code from one or more of her papers.

read more from " Mary Holly Johnson’s source code "

Solution-Soft is the provider of software for online archiving and for bandwidth management in the Internet infrastructure and the enterprise. Solution-Soft’s products enable data files to be archived online and transferred faster over networks through a revolutionary technology providing transparent compression and decompression.

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Toshiba announces silicon suitable for building an MPEG-4 based videophone. Pretty nice looking piece of work, shipping in Q42K.

read more from " Toshiba VideoPhone MPEG-4 IC "

Among other things, these folks make a MPEG 1/2 A/V encoder board for your PC. As an added bonus, their site comes in English, Spanish, and Korean versions.

read more from " Pentamedia "

A new DCT based moving pictures compression algorithm. The authors claim results far superior to that of MPEG.

Note: this paper will cost you $35.00. Abstract only is free.

read more from " The XYZ Algorithm For Real-Time Compression of Full-Motion Video "

Another free Win32 Zip program.

read more from " ZipFree 2000! "

Wotsit’s explanation of the RAR 2.00 file format

read more from " RAR 2.00 File Format "

An explanation of the archaic DWC file format.

read more from " DWC File Format "

An explanation of the ACE file format.

read more from " ACE file Format "

Wotsit’s explanation of the PKWare zip file format. This appears to be the same documentation that shows up in the PKWare appnote document.

read more from " Zip File Format "

Wotsit’s explanation of the TAR file format.

read more from " TAR File Format "

Documentation on the ancient SQZ file format.

read more from " SQZ File Format "

A description of the RAR 2.02 file format. Short description without any source code.

read more from " RAR File Format "

Wotsit’s description of the JAR file format. Robert Jung’s JAR format, not the JAR format used to distribute Java classes.

read more from " JAR File Format "

A description of the HA file format.

read more from " HA File Format "

Peter Deutsch’s description of the GZIP file format.

read more from " GZIP File Format "

A description of the ARC file format

read more from " ARC File Format Specification "

An MPEG-2 Video Decoder from the MPEG Software Simulation Group at Berkeley.

read more from " MPEG-2 Video Decoder "

Lots of links to free software from the MPEG Simulation Group.

read more from " Free MPEG Software! "

NuLib is a program for the Apple II which manipulates NuFx archives. The page is also the distribution site for NuLib2, and improved version of the program, and NufxLib, a programming library.

read more from " NuLib Home Page "

The family of Netzip archiving programs seem to have a good set of features and have received good reviews when compared to WinZip and PKZip for Windows. NetZip 7.5 adds some flashy new features, including skins!

read more from " Netzip 7.5 "

A console mode program that compresses CHW files. This is the type of file used in some help files distributed for Windows applications.

read more from " KeyCHW: A Compression Utility for MSDN "

The committee draft of the JPEG2000 specification. This is not the final specification, but it should be very close.

Note: the Zip file disappeared sometime in July 2002, this link has been updated to point to a PDF version of the draft.

read more from " JPEG 2000 - The Committee Draft Specification "