This 26-page report - "Video at Risk: Strategies for Preserving Commercial Video Collections in Libraries" - may be of interest to you.  What's it about? Quoting the report: (text below from NYU web site)

For Research Library collections across the continent, physical degradation of the media housing valuable, unique, and out–of–print video material looms immanent. Across the board, there is a pressing need to reframe principles and practices in situations where risk is defined by scarcity, and reformatting by legal and practical processes is not yet illuminated by common or best practices.

This Mellon Foundation–funded collaborative study brings together New York University's Division of Libraries with the Moving Image Archiving & Preservation program at NYU's Tisch School of the Arts, and the circulating media collections of the University of California Berkeley and Loyola University (New Orleans) to collaboratively address these challenges.