-ms=on : Enables solid archiving, which treats all files as one continuous stream for better compression.
7z a -mx=9 -mfb=273 -ms=on fagroup.7z -mx=9 : Sets level to "Ultra". -mfb=273 : Maximum number of fast bytes for LZMA.
For the fastest extraction, use the official 7-Zip client . Right-click the file and select Extract Files... to choose a specific destination.
If the "long feature" is too large for a single transfer (e.g., over 4GB for FAT32 drives), you can split it into volumes: Open the dialog in 7-Zip. Locate Split to volumes, bytes .
If you encounter a "Data Error" during extraction, try restarting your PC or using a repair tool like Wondershare Recoverit . 3. Splitting Large Archives
If you are preparing a large archive for long-term storage or transfer, use settings. This maximizes space savings but requires significant RAM and time.