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: If a portion of a solid block is damaged, it can potentially affect all files within that same block.

The "solid" feature in a file refers to Solid Compression , a method where 7-Zip treats multiple files as a single continuous data block. backup.7z

-ms=off : Disables solid mode for faster individual file access. : If a portion of a solid block

: Because similar data patterns across different files are compressed together, solid archives significantly reduce file size, especially for backups containing many small or similar files. solid archives significantly reduce file size

: Modifying or deleting a file within a solid archive is more resource-intensive because the entire solid block must be rebuilt. How to use it