No problem. Just one prominent example:7bit wrote:LOL! :lol: :lol: :lol: :lol: :lol: :lol:lal wrote:gzip and bzip2 compress with the highest compression ratio by default. RAR usually compresses better than both of them, so the archive was most probably not created with a high compression ratio mode. I'm fully with you about FOSS and open data formats, but that one you have to give to the rarlabs I'm afraid.
Give me a proof!
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falken@wopr ~/compressiontest$ time rar a -m5 -md4096 -r -s linux-3.0.8.rar linux-3.0.8/ >/dev/null
real 6m34.607s
user 2m24.089s
sys 0m6.864s
falken@wopr ~/compressiontest$ time tar cjf linux-3.0.8.tar.bz2 linux-3.0.8
real 1m50.908s
user 1m19.237s
sys 0m2.488s
falken@wopr ~/compressiontest$ du -sb *
430840596 linux-3.0.8
72082921 linux-3.0.8.rar
78257952 linux-3.0.8.tar.bz2
falken@wopr ~/compressiontest$ rar | grep ^RAR; bzip2 --version 2>&1 | grep Version
RAR 4.00 beta 3 Copyright (c) 1993-2010 Alexander Roshal 17 Dec 2010
bzip2, a block-sorting file compressor. Version 1.0.5, 10-Dec-2007.
falken@wopr ~/compressiontest$
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falken@wopr ~/compressiontest$ time rar a -r linux-3.0.8.rar linux-3.0.8/ >/dev/null
real 1m55.262s
user 1m16.513s
sys 0m6.152s
falken@wopr ~/compressiontest$ du -sb linux-3.0.8.rar
113306761 linux-3.0.8.rar
falken@wopr ~/compressiontest$