“On this ‘[ . . . ] episode of On the Media, we’re engaging in some chillingly informed speculation: what would happen if we, as a species, lost access to our electronic records? What if, either by the slow creep of technological obsolescence or sudden cosmic disaster, we no longer could draw from the well of of knowledge accrued through the ages? What if we fell into…a digital dark age?”
Source: onthemedia.org
Bonus link: [internet archive]