There was a good article from the July 2, 2014 issue of Popular Mechanics called "When Irreplaceable History Lives on Obsolete Tech.” You have likely read about saving Warhol's mid-'80s digital experiments. This article begins there, but goes deeper. A good read you can cite for your patrons.
Movies, TV shows, works of art, documentary film footage—the visual history of the 20th century exists on rapidly deteriorating formats. Who will save it?
http://tinyurl.com/kh86q9s