http://www.cogsci.princeton.edu/cgi-...e=1&word=paper
Paper; a material made of cellulose pulp derived mainly from wood or rags or certain grasses.
Although it seems archaic, paper is still on of the best methods of archiving information yet to be developed by mankind.
It's longevity and compatibilty will still ensure it's contents will remain intact long after your digital format has become useless and inoperable.
(something to think about)