Talk Through One's Backside.7z -

If one part of the archive is corrupted, it is more likely to lose the entire archive compared to non-solid archives. Common Use Scenarios:

Solid compression is a specialized feature in 7-Zip ( .7z ) that significantly improves compression ratios by treating all files in an archive as one continuous data block. Unlike standard zip, which compresses files individually, solid mode helps eliminate redundancy across similar files. Talk through one's backside.7z

are you archiving? (e.g., hundreds of documents, thousands of code files, or large video files?) If one part of the archive is corrupted,

will you need to open single files from this archive? Revisiting 7-ZIP - Coding Horror are you archiving

It can achieve much smaller file sizes than traditional archives. For instance, a 2GB folder of similar files can be reduced to 130MB. Drawbacks:

Extracting a single file from the middle of a large solid archive requires decompressing everything that came before it.