refers to the transfer of digital files to a new media on a regular basis. This is the most important part of an institution's long-term commitment to digitization. Technology is usually outdated by the time it hits the marketplace. The data we generate today must be retrievable five, fifty, and a hundred years from now. In order to ensure long-term access to the data, it must be transferred to the most recent and stable type of media storage. In a hundred years, it is very unlikely that any of the computers on our desks today will function. We must make sure that the data can be retrieved by future technology.