CDs/DVDs typically oxidize after 15 years. Print the book version on vellum, and you'll preserve it for a few thousand years (or ANSI paper with the infinity s

CDs/DVDs typically oxidize after 15 years. Print the book version on vellum, and you'll preserve it for a few thousand years (or ANSI paper with the infinity sign, which supposedly lasts for at least 750 years).