Vom Internet Archive Blog:
Internet Archive is building a physical archive for the long term preservation of one copy of every book, record, and movie we are able to attract or acquire. Because we expect day-to-day access to these materials to occur through digital means, the our physical archive is designed for long-term preservation of materials with only occasional, collection-scale retrieval. Because of this, we can create optimized environments for physical preservation and organizational structures that facilitate appropriate access. A seed bank might be conceptually closest to what we have in mind: storing important objects in safe ways to be used for redundancy, authority, and in case of catastrophe.
The goal is to preserve one copy of every published work.