Fishermansfriend | 7z

64 MB - 128 MB (Higher requires more RAM but better compression)

⚓ Technical Paper: Optimal 7z Archiving for Marine & Fishery Data ("FishermansFriend 7z") FishermansFriend 7z

For automating backups, use this 7-Zip Command Line command: 64 MB - 128 MB (Higher requires more

Fishery data is notoriously dense (e.g., Humminbird .DAT/HT files , Lowrance .sl2/.sl3 files ). Humminbird .DAT/HT files

-sdel : Delete files after archiving (creates space immediately)

7z a -t7z -m0=lzma2 -mx=9 -ms=on -p -sdel "FishingData.7z" "C:\RawSonarData\*" a : Add to archive -mx=9 : Ultra compression -ms=on : Solid archive -p : Encrypt

When archiving logs, create a new 7z file for every trip or week. YYYY-MM-DD_TripName_FishermansFriend.7z