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I've noticed that when browsing an archive containing multiple files with 7-zip 9.20 Windows GUI, extracting one file for previewing takes significantly longer with .7z than .rar archives. With .7zips it also cycles through the filenames in the archive. To me it looks like decompressing the entire archive and keeping just one file.

Is there a setting in 7-zip (current or beta/alpha versions) that allows RAR-like behavior?

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up vote 2 down vote accepted

You need to change the Solid Block size option to Non-solid. RAR supports solid compression too, but perhaps it's not enabled by default.

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Wow, such an useful feature and not enabled by default on 7-zip? It doesn't even increase the file size noticeably... –  siikamiika Oct 27 '13 at 22:56

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