'Digital dark age' may doom some data

Contrary to popular belief, electronic data has proven to be much more ephemeral than books, journals or pieces of plastic art. After all, when was the last time you opened a WordPerfect file or tried to read an 8-inch floppy disk? “Even over the course of 10 years, you can have a rapid enough evolution in the ways people store digital information and the programs they use to access it…