[ubuntu] 7-zip file compressed, can't open.

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http://ubuntuforums.org – Hello Yesterday in WindowsXP I compressed some files with 7-zip Today in Ubuntu I can't open them. The files have .7z extension. I installed 7-zip: Code: sudo apt-get install 7-zip And than tried to open them: Code: p7zip -d filename.7z But instead i got this error while loading the archive Command line output Quote: 7-Zip [64] 9.20 Copyright (c) 1999-2010 Igor Pavlov 2010-11-18 p7zip Version 9.20 (locale=en_US.UTF-8,Utf16=on,HugeFiles=on,2 CPUs) Error: /media/USB_2/filename.7z: Can not open file as archive Errors: 1 Can not ope (Hardware)