Versions tested: 0.75
Optimal parameters: -
Links: http://www.nlo-one.n...
Authors: Nikita Lesnikov
Algorithms: X86, LZP+PPMII
Notable peformances: -

ctxf

The program website describes the archiver in the following way:

CTX is a file archiver which uses advanced contextual modelling techniques combined with multiple optimization tricks. This helps CTX to achieve superb compression rates on typical data, such as texts, executables, waves, pictures, JPEG & MPEG files, office documents, etc.

CTX core has a lot of settings which can be used to adjust compression/speed level. In fact, it is one of the fastest universal contextual compressors.

Picks from changelog for version 0.75:
program website 2009, March 26

 

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Disqualified (why) configurations (with qualification ratings)
Ver Rating CPR DPR S.E. R.E. Ratio C. kB/s D. kB/s
<none>
0.75 - (q1, q2)

Version info

0.75, tar: no, mode: n/a, crc32: n/a, decoder: n/a, tested: 2009 Feb 22
compression: ctxfc.exe c <args> <cfile> <src>
decompression: ctxfc.exe x <cfile> <src>
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