ZiNgA BuRgA Wrote:I really don't think 13 bytes matters that much...  It could even be part of the header.  Not certain, but I've got a feeling that 7-Zip uses zlib for deflating anyways.  Note that the gzip format is really just a deflate with a few headers and CRC32 at the end, If I recall correctly.  Hmm, you might even be able to get a pure deflate stream to work, IDK, but 13 bytes is really nothing...

I totally agree with this, just some bytes, moreover a few kbytes is not too much. I wrote it only to show the difference between the 7z GUI and command line compressed files. (That was a joke only. ;) )

How come that a zlib max compressed file is 4-5% bigger than a 7z compressed gzip file? I haven't got enough skill to implement zlib compressor into my program so I used a premade code which uses the zlib.dll library. Maybe that is the reason for the relatively big difference? (4-5% means 35kB smaller file in a file like paf.prx)