Over the past several decades, millions of digital objects of significant scientific, economic, cultural, and historic value have been published and distributed to libraries and archives on removable media. Providing long-term access to these documents, media files, and software executables is an increasingly complex task because of dependencies…

In April 2000, the Digital Library Federation commissioned three reports to address broader concerns about digital collections in research libraries. This report synthesizes the nearly 10 years' experience that libraries have had digitizing items from their rare, special, and general collections, and making them available online. The report…