ABSTRACT
Backup is important, but backup is not preservation. The goal of D-65 is to have an EXACT DUPLICATE of our catalog and all of our image fi les on multiple media in multiple locations.
An archive should be made regularly because computers are not 100% reliable. Hard disks malfunction, viruses and worms corrupt data, and people can make simple mistakes like deleting when they didn’t mean to. Having an archive means you can recover from such things, with little if any data lost.
