He maintains that the cost of ingest and management remains the same - whether a digital or a paper archive.
One solution is OAIS - open archival information systems - he describes their ARCHsearch technology, which is excellent.
DOIs (Digital Object Identifiers) have made a huge difference - a permanently resolvable URL - it is a huge step forward as a way of citing digital archives...
He speaks about Europeana, and Linked Data too, finishes with a list of challenges - such as the permanent flux of technology, and automated ingest, search paradigms and research/commercial culture. The successes are tool development like OASIS and FISH, the integration into workflow is crucial, embedded into funding bodies, publishing and outreach.