However, the preservation community argues a "Grandfather Clause" of digital media. Because:

While Mazinger Z remains a pop culture icon, its physical media—from original 1970s manga volumes to Betamax tapes of obscure dubs—is fragile and at risk of being lost forever. This is where the steps in. As a non-profit digital library, its mission is to provide "universal access to all knowledge," a goal that extends to preserving the digital heritage of our culture.