sam1984 Posted January 6, 2012 Share Posted January 6, 2012 Dear friend,I have 7zip file, Extract it and compress it again with 7zip GUI.I choose ULTRA \ LZMA \ 64 \ 64 \ solid option in 7zip GUI.after compression I compare it with original version.my 7zip compression ratio is about 95% but in original version is about 82%.I see property of original 7zip.the method in original version was "LZMA BCJ2" and "solid +" and "Blocks 2" but in mine version it is "LZMA" and "solid -" and "blocks 1"so my question is how and with which switch i can change my compression method?i read help of 7zip but it seems that switches for bcj2 dont work in GUI. Link to comment Share on other sites More sharing options...
MagicAndre1981 Posted January 6, 2012 Share Posted January 6, 2012 set LZMA2 and use a higher dictionary value. Link to comment Share on other sites More sharing options...
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