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To date, most of the focus regarding digital preservation has been on replicating copies of the resources to be preserved from the "living web" and placing them in an archive for controlled curation. Once inside an archive, the resources are subject to careful processes of refreshing (making additional copies to new media) and migrating (conversion to new formats and applications). For small numbers of resources of known value, this is a practical and worthwhile approach to digitaldoi:10.1007/s00799-007-0012-y fatcat:5ufnwywctfbrrheo65zxqrz22q