Gf1: 7z

: Decompressing a single file from a solid archive is slower. The archiver may need to decompress all preceding files in the same "solid block" to reach the specific one you want.

: Solid mode offers the best results when archiving many similar files (like text documents or different versions of the same code). It sacrifices speed for the smallest possible file size. Gf1 7z

: Modifying or adding files to a solid archive is inefficient. 7-Zip often has to re-compress the entire block or archive to apply changes. : Decompressing a single file from a solid archive is slower