: If any part of a solid archive is corrupted, the entire archive (all files within) may become unrecoverable.
: To extract just one small file from the middle of a large solid archive, 7-Zip must decompress everything before it. fail 7z skachat
If you encounter a "Data Error" or "Fail" message when trying to extract a solid 7z file: How to recover corrupted 7z archive : If any part of a solid archive