@Suiseiseki @MK2boogaloo There's a reason i put zip at last, been also looking at 7z and tar.zst as options, i got some .rar files that i gotta convert to either zip or 7z, believe me i do lament that the innovation on compressed archive algorithms and formats has put more importance to speed and compression ration than to archival for bit rot and file corruption prevention/mitigation.