Author Page
DWC File Format
An explanation of the archaic DWC file format.
RAR 2.00 File Format
Wotsit’s explanation of the RAR 2.00 file format
ARC File Format Specification
A description of the ARC file format
GZIP File Format
Peter Deutsch’s description of the GZIP file format.
HA File Format
A description of the HA file format.
JAR File Format
Wotsit’s description of the JAR file format. Robert Jung’s JAR format, not the JAR format used to distribute Java classes.
RAR File Format
A description of the RAR 2.02 file format. Short description without any source code.
SQZ File Format
Documentation on the ancient SQZ file format.
TAR File Format
Wotsit’s explanation of the TAR file format.
Zip 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.
Free MPEG Software!
Lots of links to free software from the MPEG Simulation Group.
MPEG-2 Video Decoder
An MPEG-2 Video Decoder from the MPEG Software Simulation Group at Berkeley.
Netzip 7.5
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!
NuLib Home Page
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.
KeyCHW: A Compression Utility for MSDN
A console mode program that compresses CHW files. This is the type of file used in some help files distributed for Windows applications.
Lurawave SmartCompress
This is a freeware image compressor that does wavelet based compression. Lurawave appears to have all their products and documentation available in German language as well as English. In order to establish their products they are making much of it available as freeware.
JPEG 2000 - The Committee Draft Specification
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.
Zip IT 1.0
This product is apparently some sort of archiver, but no information is to be found on this page!
MPEG Starting Points and FAQs
A really great resource for those seeking MPEG information. Pointers to lots of fundamental information, FAQs, and answers to many questions.
Sipro Lab Telecom
These folks make several different G.729 and G.723.1 codecs,
VoiceAge Corporation
Our technology served as the foundation for numerous voice compression products used by voice portal and large multinationals in their efforts to better meet the quality requirements that end users. As example voice email, voice chatting, voice annotation in web site. Our technology is already integrated into software by companies such as Microsoft with […]
Papers of Christos Chrysafis
Christos Chrysafis has quite a few papers on wavelets available here.
Rate Scalable Color Image Compression
Edward J. Delp describes his wavelet-based coding system for color images using a luminance/chromanance color space.
http://dynamo.ecn.purdue.edu/~ace/color-wavelet/cwavelet.html
A Rate Scalable Video Codec
Edward J. Delp and pals have created a rate-scalable video codec that uses a wavelet based codec with motion compensation.
Parallel Video Compression
Edward J. Delp et.al. have tackled the problem of perfomring video compression using parallel processing techniques.
http://dynamo.ecn.purdue.edu/~ace/compression/compression.html
Papers of Edward J. Delp
Edward J. Delp has a big batch of papers on line. This includes a big batch that deal with Image and Video compression.
QccPack — Quantization, Compression, and Coding Library
James E. Fowler at Mississippi State University has created this library, which is an open source collection of routines that are useful for people interested in data compression research. The distribution includes QccSPIHT.
Version 0.45 is available as of December, 2003.
Papers of Antonio Ortega
Antonio Ortega at USC has quite a few compression related papers on line. They include papers on wavelets and quantization.
Wavelets: Software and Applications
A PhD thesis by Geert Uytterhoeven.
Avideh Zakhor’s Home Page
Avideh Zakhor has links to many of her papers on image compression.