Books are still most durable way to store information

http://www.salon.com/2013/11/26/books_are_still_most_durable_way_to_store_information_newscred/

"...Despite claims to the contrary, the storage media in wide use 
today---CD-ROMs, spinning hard drives, flash memory, etc.---aren't very 
durable. "You're talking years, not decades," says Howard Besser, a 
professor and archivist at New York University who was named a pioneer 
of digital preservation by the Library of Congress. "A CD-ROM was 
originally supposed to last 100 years, but many fail in 10."..."