Zoran makes chips that do some MPEG decoding as well as JPEG codecs.

http://www.zoran.com/

A commercial program that supports both the Stuffit and Zip formats. DropZip is available for both Mac and Windows platforms.

http://www.aladdinsys.com/dropzip/index.html

Another program for compression executables. This is a Win32 preprocessor that claims to reduce EXE size as much as 70%.

http://www.entechtaiwan.com/aspack.htm

The image application group at IBM’s Watson Research Center works on quite a few different topics related to digital imaging, including image capture, color science, printing and displaying images, and so on. Of course, part of that is image compression, which is why we’re interested in them.

http://www.research.ibm.com/image_apps/

A freeware program that you can use to create CAB files.

http://home.t-online.de/home/lars.hederer/english.htm

fastJar is a C version of Sun’s jar utility. Being written in C instead of Java gives this program a bit of a boost; albeit at the expense of purity.

http://fastjar.sourceforge.net/

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

http://zipcracker.sourceforge.net/

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

http://www.acm.org/crossroads/xrds6-3/xrds6-3.html

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.

http://www.acm.org/crossroads/xrds6-3/ovp63.html

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

http://www.acm.org/crossroads/xrds6-3/lsv_oct.html

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

http://www.acm.org/crossroads/xrds6-3/prefix.html

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

http://www.acm.org/crossroads/xrds6-3/sahaimgcoding.html

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 as 2500 others.

http://lcavwww.epfl.ch/~balmelli/software/quadtree/index.html

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.

ftp://isdl.ee.washington.edu/pub/VQ/mhjohns/

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.

http://www.solution-soft.com/

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.

http://www.pentamedia.com/

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

http://www.toshiba.com/taec/press/to-064.shtml

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.

http://www.idealibrary.com/links/artid/rtim.1996.0003

Another free Win32 Zip program.

http://www.pepsoft.com/zipfree/intro.html

An explanation of the ACE file format.

http://DataCompression.info/ArchiveFormats/ACE.txt

An explanation of the archaic DWC file format.

http://DataCompression.info/ArchiveFormats/dwc.txt

Wotsit’s explanation of the RAR 2.00 file format

http://DataCompression.info/ArchiveFormats/rar_2.txt

A description of the ARC file format

http://DataCompression.info/ArchiveFormats/arc.txt

Peter Deutsch’s description of the GZIP file format.

http://DataCompression.info/ArchiveFormats/gzip.txt

A description of the HA file format.

http://DataCompression.info/ArchiveFormats/ha.txt

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

http://DataCompression.info/ArchiveFormats/jar.txt

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

http://DataCompression.info/ArchiveFormats/RAR202.txt

Documentation on the ancient SQZ file format.

http://DataCompression.info/ArchiveFormats/sqz.txt

Wotsit’s explanation of the TAR file format.

http://DataCompression.info/ArchiveFormats/tar.txt

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

http://DataCompression.info/ArchiveFormats/zip.txt