It is significantly more efficient when compressing many small, similar files that wouldn't compress well on their own.
The refers to Solid Compression , a specific method used in the RAR format (and others like 7z) to significantly reduce file size. How the "Solid" Feature Works HITRMOEV-MW.rar
If a solid archive becomes even slightly corrupted, it is often much harder to recover any data compared to a non-solid archive. Key Benefits of RAR Solid Archives It is significantly more efficient when compressing many
Rar solid archive support unavailable error message : r/libreELEC HITRMOEV-MW.rar
To extract a single file from the middle or end of a solid archive, the software must process all preceding data in the block, which can be slower than standard extraction.