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Fri Oct 26, 07 05:55 PM
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In computing, RAR is a proprietary file format for data compression and archiving, developed by Eugene Roshal (hence the name RAR: Roshal ARchive).
RAR compression operations are typically much slower than compressing the same data with early compression algorithms like ZIP and gzip, but with a much better rate of compression.
7z's LZMA algorithm is quite similar to RAR in providing extremely high compression efficiency at the cost of compute time to compress and decompress. Both provide among the highest compression efficiency of any popular scheme, with the question of which algorithm is the more efficient compression scheme strongly depending on the files being compressed. Both formats are still being actively developed.
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http://blog.bitcomet.com/bitcomet/post_1627/
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