Berkely supplies a complete distribution of MPEG tools that have been widely ported and are used in many MPEG applications. The toolset includes and MPEG-1 video encoder and decoder, along with some analysis and content creation software. This page also has links to some adidtional information and a few MPEG sample files.

It would appear that this is freeware, but I have not yet verified this.

http://bmrc.berkeley.edu/projects/mpeg/

Information about JPEG images

http://home.netscape.com/assist/helper_apps/jpeg.txt

George Buyanovsky’s ACB archiver. The proprietary compression scheme used by ACB gives consistently impressive compression ratios. Those ratios come at the expense of much RAM and CPU time.

ftp://ftp.cdrom.com/pub/sac/pack/acb_200c.zip

The docs say it all: der ultimative FREEWARE-Packer. Yes, the internal documentation for this archiver is in German, but users limited to English should still be able to figure this program out.

ftp://ftp.cdrom.com/pub/sac/pack/amgc23.zip

This appears to be a freeware archiver. I’m unable to give more information; all the documentation is in an unkown language. Any reader who is able to translate is invited to improve on this description.

ftp://ftp.cdrom.com/pub/sac/pack/arjz015.zip

Mirror site

ftp://dna.stanford.edu/pub/canterbury

This is an archiver that appears to have been designed with the DC Micro Development Crusher! Library. No documentation in the package, I’m assuming this is freeware.

ftp://ftp.cdrom.com/pub/sac/pack/arq32.zip

Another shareware archiving utility.

ftp://ftp.cdrom.com/pub/sac/pack/arx100.zip

A freeware archiver from Sweden. Versions available for DOS, Windows, and Linux, with Win9x long filename support. Includes source for extraction from ASD archives.

DCL user feedback: Finally i found what I was looking for, a freeware archiver for both Windows, Dos, and Linux!

Another user said: Offers What I waslooking for, very helpful.

ftp://ftp.cdrom.com/pub/sac/pack/asd014.exe

A freeware archiver.

ftp://ftp.cdrom.com/pub/sac/pack/boa058.zip

Archiving program that advertises support for DOS, Windows, NT, OS/2, QNX, and UNIX. This distribution has no docs, but the ACT page indicates that this is shareware, so until further notice I’ll label it as such.

ftp://ftp.cdrom.com/pub/sac/pack/bsa200.zip

This is freeware with no source. The docs claim a fast algorithm with arithmetic coding.

ftp://ftp.cdrom.com/pub/sac/pack/bvi170.rar

Full-featured archiver AIN, the extracting utility AINEXT and the EXE-files compressor AINEXE. Compression/extraction methods used in the AIN archiver excels noticeably those used in any well-known archivers, such as ARJ, LHA and PKZIP, in both the compression rate and the performance.
One user who rated this product for the DCL said Super Product!

ftp://ftp.elf.stuba.sk/pub/pc/pack/ain232.exe

Caravian has developed a proprietary compression algorithm for palettized images. They claim substantial imporvement over conventional GIF compression. Their web site has an ActiveX plug-in for demonstrating the technology, but it isn’t clear exactly what they are selling. The site is rather vague about specifics.

http://www.caravian.com/

Michael Schindler’s home page for his business, which appears to be consulting in the field of data compression. His home page has a description of his business, as well as links to some informative pages he supports.

http://www.compressconsult.com/

A page by Michael Schindler that describes Huffman coding in a fair amount of detail. Also includes links to other information resources. This page also has an explanation of the canonical huffman table storage algorithm.

http://www.compressconsult.com/huffman/

Home Page for Steve Tate, University of North Texas. State Tate is an Associate Professor at the University of North Texas, and has links to a few data compression papers on his site.

http://www.cs.unt.edu/~srt

Ioannis Kontoyiannis is an Assistant Professor at Purdue. He has many of his papers available on line, in PS or PDF format, often both. Sample title: Pointwise redundancy in lossy data compression and universal lossy data compression..

http://www.dam.brown.edu/people/yiannis/

A paper by Brent Chapin and Steve Tate describing some improvements in BWT compression. The abstract says that compression can be improved by alphabet ordering and reflecting the sorted binary strings. This version is in PDF format, a PS format is available as well.

http://www.cs.unt.edu/~srt/papers/bwtsort.pdf

Home of jZip, a java based zip program

http://www.ut.ee/~bill/

This site has links to Telvox’s CODEC package, which appears to ship in both free and commercial versions. CODEC uses proprietary lossless compression, and is ported to a wide variety of platforms. Telvox is located in Bologna, Italy, and has duplicate web pages in English and Italian.

http://www.telvox.com/

DCG Framework is a object oriented framework for lossless data compression. It is written in C++, and intends to be a didactic framework for data compression teaching. This framework is pointed to by the Secção de Análise de Sinais page.

http://www.deetc.isel.ipl.pt/analisedesinai/ccd/ccd_links.html

Personal page of David Pereira Coutinho, Professor at Instituto Superior de Engenharia de Lisboa. This page contains links to several compression-related abstracts and papers, as well as links to the Data Compression Framework developed with his students. (Indexed here as The DCG Framework.) The majority of the page is available in English and Portuguese.

http://www.cc.isel.ipl.pt/Pessoais/DavidCoutinho/index.htm

Includes editing software, file formats and converters, codecs, and links. This page is at the University of Hannover, Germany. While there appears to be a wealth of software on this site, it would appear that you need special privileges to get access to ti.

http://www.tnt.uni-hannover.de/soft/audio/

A page of links from the JPEG committee.

http://www.jpeg.org/public/jpeglinks.html

by Hankersson et. al. Hardcover - 330 pages (November 1997) CRC Press; ISBN: 0849339855. A textbook for upper-level or graduate course on compression. Please use the link on this page to purchase this book, it will help support the Data Compression Library.

http://www.amazon.com/exec/obidos/ASIN/0849339855/theinternetdatac

The original call for contributions for JPEG 2000. This is of course way out of date, but it may be of historical interest.

http://www.jpeg.org/public/wg1n505.pdf

A final draft of the JPEG-LS document. This is not the standard, but it is bound to be pretty close. The doc says:
This document is the final committee draft of CD 14495, Lossless and near-lossless coding of continuous tone still images (JPEG-LS) agreed by ISO/IEC JTC1/SC29 to be made available for public comment on WG1 web site, www.jpeg.org.

http://www.jpeg.org/public/fcd14495p.pdf

The University of Bath has a group that is advertised as “world leaders in still image and video coding.” They appear to be interested in lossy compression based on DCT, Wavelets, and Fractal compression. This is their home page.

http://dmsun4.bath.ac.uk/

Mark Nelson’s home page, with links to his books and articles.

http://www.dogma.net/markn/