_y_pakizip

: Every few years, re-pack your data to take advantage of newer, more efficient algorithms. Conclusion

: Identify which files are redundant. There’s no point in "zipping" trash. _y_pakizip

: Never keep your only copy in a single _y_pakizip archive. Use the 3-2-1 backup rule (3 copies, 2 different media, 1 offsite). : Every few years, re-pack your data to