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Topic: The best file compressor (Read 7173 times)

legendary
Activity: 1020
Merit: 1000
November 29, 2010, 03:41:12 AM
#8
 FP8 (= Fast PAQ8)
http://encode.ru/threads/613-FP8-(-Fast-PAQ8) --official link

 FP8 (= Fast PAQ8) is based on paq8px_v69 compressor. It has removed some models so it is faster on default data. It is only little bit slower than paq8pf (at least on my machine) while providing better compression ratio.
 
Special data (wav, bmp, jpeg) are compressed with original model (with same speed and ratio as paq8px)

Download link
http://spndr7.fileave.com/fp8_v1.zip
legendary
Activity: 1020
Merit: 1000
November 29, 2010, 03:36:34 AM
#7
http://mattmahoney.net/dc/zpaq.html--official link

ZPAQ is a proposed standard format for highly compressed data that allows new compression algorithms to be developed without breaking compatibility with older programs. It is not patented. Software is open source (GPL v3) except for the libzpaq API, which is public domain.

    * libzpaq 2.02 - Contains the ZPAQ library API, ZPAQ specification, reference decoder, the zpaq archiver, zpipe file compressor, and zpsfx self extracting archive stub. To install: create a folder c:\zpaq and unzip all the files there. See enclosed readme.txt for further instructions. Last updated Nov. 13, 2010.

The ZPAQ specification and reference decoder define a format for highly compressed data. It is designed so that when better compression algorithms are developed, archives compressed with older verions can still be decompressed with the newer version and vice versa. This is achieved by storing the decompression algorithm in the archive header. Algorithms are based on the PAQ context mixing model with optional postprocessing.

libzpaq is an application programming interface in C++ for reading and writing ZPAQ compressed data to or from files or objects in memory. This part of the software is public domain.

Download latest version
http://mattmahoney.net/dc/libzpaq202.zip
newbie
Activity: 5
Merit: 0
November 27, 2010, 02:43:07 PM
#6
I agree that PAQ8P is the best compressor.  It may take a little more time, but the quality is certainly worth it.  I would love to hear other suggestions as I am looking to improve my work in this area.  I am always open to suggestions.
legendary
Activity: 860
Merit: 1015
legendary
Activity: 1658
Merit: 1001
September 18, 2010, 04:03:43 AM
#4
I always liked to use PeaZip, FOSS and support for many formats.

http://peazip.sourceforge.net/
LZ
legendary
Activity: 1722
Merit: 1062
P2P Cryptocurrency
September 13, 2010, 11:20:28 AM
#3
I think that 7-Zip is the most usable and user friendly compressor.
administrator
Activity: 4228
Merit: 8647
September 13, 2010, 08:36:40 AM
#2
FreeArc and NanoZip also have incredible compression ratios. They're not quite as good as PAQ, but they're much faster.
legendary
Activity: 1020
Merit: 1000
September 13, 2010, 06:46:57 AM
#1
the BEST compressor

The best compressor available toda --PAQ8P
It takes 1 hr for from compressing and decompressing 15 MB data on 3 GHz processor 2.5 GB RAM.....it is program by the person who has won the current
Hutter Prize
(for info visit http://prize.hutter1.net) prize(annual prize for file compression) .

Download the softwares from

http://spndr7.fileave.com/paq8px_v69_M4ST3R.rar

Practical compressor ->paq8pf It is 40 times faster than
paq8p with a bit of compromise on compression ratio .

http://spndr7.fileave.com/paq8pf_beta3.7z


you can just check its efficiency at
http;//maximumcompression.com/

For more info visit encode.ru ->biggest forum for file compression
http://encode.ru/forum/showthread.php?t=342



homepage of PAQ
cs.fit.edu/~mmahoney/compression/
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