These folks would like to do video compression for you, helping you with your CD-ROM or DVD products.

http://www.cloudsystems.com/

An OCX for compressing and decompressing strings and files. Sample program for VB5 included.

http://members.tripod.com/~Maquisistem/index.html

One of the faculty pages at UC Santa Cruz, the late David A. Huffman.

http://www.cse.ucsc.edu/personnel/faculty/huffman.html

An online version of the jpegtran utility from the IJG. Upload an image and muck about with it.

http://sylvana.net/jpeg-lab.html

Alistair Moffat has put together all the links to his source code and articles on Arithmetic Coding in one tidy place.

http://www.cs.mu.oz.au/~alistair/arith_coder/

A comparison of various lossy audio compression schemes. Panos Stokas provides his take on the whole situation, and includes tons of links to files, articles, and more food for thought. Most readers seem to like this web page, but one reader had this negative comment: This website is patently and fatally flawed to the nth degree. Nothing but misconception and conjecture with no real basis in scientific analysis. Very misleading to the uneducated in audio compression.. Another reader says Just reading “However, we have not found a single implementation that did not produce serious amounts of distortion in our testing sample. Nobody seems interested any longer.” about AAC of all things, makes it apparent that this guy has no idea what he’s talking about or what he’s doing.

http://ekei.com/audio/

MP3.ORG has clustered a bunch of MP3 resources in one location. This is a page of links, links, and more links. If you can’t find a link to what you need here, it probably isn’t an MP3 question.

http://www.mpeg.org/MPEG/mp3.html

The definition also has links to some keyword definitions.

http://www.pcwebopedia.com/TERM/D/data_compression.html

AOL search page with links to commercial and free data compression programs, and the companies that produce them.

http://search.aol.com/cat.adp?from=catsearch&id=96710

Innermedia makes DynaZip, a Zip compatible library.

http://www.innermedia.com/

Elcom makes password recovery software, which includes support for Zip and Arj files.

http://www.elcomsoft.com/prs.html

Want a version of zip for OS/2? This is the place to get it. WarpZip is built on the Infozip software.

http://www.pillarsoft.net/

The AOL.COM search page devoted to Wavelets.

http://search.aol.com/cat.adp?from=catsearch&id=26934

A fairly comprehensive introduction to Wavelets. This is targeted to the engineer, not the mathematician.

http://perso.wanadoo.fr/polyvalens/clemens/wavelets/wavelets.html

By Stephane Mallat. I believe these pages are extracted and abridged from his book.

http://cas.ensmp.fr/~chaplais/Wavetour_presentation/Wavetour_presentation_US.html

The following short courses are offered in 1998-1999, based on the book A Friendly Guide to Wavelets by Gerald Kaiser:
A Detailed Introduction to Wavelets With Applications to Image Analysis and Lossless Coding
A Detailed Introduction to Mathematical and Physical Wavelets
With Applications to Image Analysis, Sonar and Radar

http://www.wavelets.com/

Grand Valley State University page providing undergraduate resources for learning about wavelets.

http://www.gvsu.edu/mathstat/wavelets.htm

A paper from C. Valens discussing Embedded Zerotree Wavelet encoding.

http://perso.wanadoo.fr/polyvalens/clemens/ezw/ezw.html

Yet another Web page full of links to wavelet resources.

http://www.math.wustl.edu/wavelet/

AOL’s search page keeps a list of folks who are active researchers in the field of compression.

http://search.aol.com/cat.adp?from=catsearch&id=57878

As it says, this is the home site of the committees. You need to be a member to access some areas, but there is plenty of information here for the common man as well.

http://www.jpeg.org/

A discussion of LZSS in Croatian.
This link points to an archived site, as the original has disappeared. Links on the archived page may or may not work properly.

http://web.archive.org/web/20020220135228/http://www.rasip.fer.hr/research/compress/algori
thms/fund/lz/lzss_hr.html

A look at lossless compression techniques, including LZ77, LZSS, LZ78, and LZW. Croatian language.

The original of this page is now missing, any help locating it would be greatly appreciated. You can find an archived copy at the link.

http://web.archive.org/web/20010708102510/http://www.rasip.etf.hr/research/compress/algori
thms/fund/lz/index_hr.html

The definition of LZ77 from the Free On-line Dictionary of Computing.

http://burks.bton.ac.uk/burks/foldoc/99/67.htm

The definition of LZ78 from the Free On-line Dictionary of Computing.

http://burks.bton.ac.uk/burks/foldoc/0/68.htm

The definition of LZW from the Free On-line Dictionary of Computing.

http://burks.bton.ac.uk/burks/foldoc/59/64.htm

Description of the LZW algorithm in Croatian.

http://web.archive.org/web/20010708132341/www.rasip.etf.hr/research/compress/algorithms/fu
nd/lz/lzw_hr.html

A big collection of links to Wavelet resources on the Web from Andreas Uhl.

http://www.mat.sbg.ac.at/~uhl/wav.html

Links to lots of info regarding the audio compression portions of the MPEG standards. This includes an overview, the MPEG Audio FAQ, pointers to resources, some free software, and test bitstreams.

http://www.mpeg.org/MPEG/audio.html

The home of Wim Swelden’s monthly Wavelet Digest. The home page includes some spiffy search capabilities, back issues, and so on.

http://www.wavelet.org/wavelet/index.html