Versions tested: 3.93, 4.00b3, 4.20b3
Optimal parameters: -m3
Links: http://rarlab.com
Authors: Eugene Roshal, Dmitry Shkarin
Algorithms: LZ+HUF, PPMII, X86
Notable peformances: Medical1

winrar

RAR is being developed by Eugene Roshal. The version 3 compression uses 4 MB sliding window LZ or PPMII (ppmd by Dmitry Shkarin) for general purpose compression with additional data type specific algorithms. [1]

RAR is a powerful tool allowing you to manage and control archive files. Console RAR supports archives only in RAR format, the names of which usually have a ".rar" extension. ZIP and other formats are not supported. Windows users may install GUI RAR version - WinRAR, which is able to process many more archive types.

RAR features include:

the program documentation

 

[1] UnRAR source code http://rarlabs.com

(Have info that should be added here? E-mail.)


Qualified configurations
Ver Rating CPR DPR S.E. R.E. Ratio C. kB/s D. kB/s
-m1
3.93 24 36 5 215 0 2.755 26859 44481
4.00b3 26 +8.3% 0% + +8.8% 2.755 0% 26759 -0.4% 57182 +29%
4.20b3 39 +50% +83% +50% 2.750 -0.2% 50012 +87% 61550 +7.6%
-m2
3.93 80 87 40 176 1 3.235 8960 49143
4.00b3 82 +2.5% 0% +25% +2.8% 3.235 0% 8941 -0.2% 60719 +24%
4.20b3 156 +90% +111% +12% +81% + 3.252 +0.5% 17689 +98% 64157 +5.7%
-m3
3.93 198 211 112 205 11 3.571 7430 46812
4.00b3 202 +2.0% 0% +20% +2.4% 3.571 0% 7430 0% 55714 +19%
4.20b3 346 +71% +85% +9.0% +70% +82% 3.572 +0% 13690 +84% 60576 +8.7%
-m4
3.93 173 220 49 155 12 3.646 6262 16618
4.00b3 174 +0.6% 0% +2.0% +0.6% 3.646 0% 6268 +0% 16895 +1.7%
4.20b3 306 +76% +53% +202% +99% +50% 3.583 -1.7% 11396 +82% 60578 +259%
-m5
3.93 160 205 44 138 12 3.663 5569 14371
4.00b3 161 +0.6% 0% +2.3% +0.7% 3.663 0% 5565 -0% 14642 +1.9%
4.20b3 283 +76% +49% +238% +104% +42% 3.586 -2.1% 10255 +84% 60700 +315%
-m5 -mc14:128t
3.93 149 198 38 125 11 3.680 5131 11670
4.00b3 150 +0.7% 0% 0% 0% + 3.680 0% 5129 -0% 11874 +1.7%
4.20b3 157 +4.7% +20% -18% +9.6% - 3.657 -0.6% 6548 +28% 10284 -13%
-m5 -mct-
3.93 161 166 119 161 10 3.589 5536 46908
4.00b3 163 +1.2% -0.6% +18% +1.2% 3.589 0% 5525 -0.2% 55699 +19%

Version info

3.93, tar: no, mode: 64-bit, crc32: 655cccf3, decoder: 68 kB, tested: 2010 Apr 14
compression: rar.exe a -s -r -mt4 <args> <cfile> <src>
decompression: rar.exe x -mt4 <cfile>
4.00b3, tar: no, mode: 64-bit, crc32: 29ebfc98, decoder: 92 kB, tested: 2010 Dec 27
compression: rar.exe a -s -r -mt4 <args> <cfile> <src>
decompression: rar.exe x -mt4 <cfile>
4.20b3, tar: no, mode: 64-bit, crc32: ec894a9b, decoder: 176 kB, tested: 2012 Jun 03
compression: rar.exe a -s -r -mt4 <args> <cfile> <src>
decompression: rar.exe x -mt4 <cfile>