Brm.7z -

: To extract just one file from later in the block, the software must decompress everything preceding it, which can be slower for single-file access.

Depending on the source of your file, likely stands for: brm.7z

: It significantly improves compression because the algorithm can find redundant data across different files rather than just within a single file. : To extract just one file from later

: All uncompressed files are concatenated and treated as a single stream. brm.7z

: If a "solid" archive becomes corrupted, you often lose the entire block of files rather than just the one damaged file. Potential "BRM" Meanings