From their website:
The Hemispheric Institute Digital Video Library, a collaboration between New York University Libraries and NYU's Hemispheric Institute of Performance and Politics, provides a digital venue for documenting the expression of social and political life through performance in the many cultures and political landscapes of the Americas. The Hemispheric Institute Digital Video Library brings together in one place materials that have been available only in small, little-known archives that are inaccessible to scholars and that lack the resources to properly care for and provide access to these extraordinary cultural documents. But it is not enough simply to gather the videos together. We have used the resources of digital technology to insure the long-term preservation of this rare material and to make it accessible not just to researchers at NYU but to scholars and artists around the world.