The document summarizes MediaMatrix, a digital media platform developed by MATRIX at Michigan State University. It has 16 full-time employees from various fields working on digital library research and tools to make digital media more accessible, usable, and interactive. MediaMatrix allows users to segment, annotate, and organize audio and video clips and create online publications. It has been used in writing and history courses at Tufts University and MSU. The conclusion emphasizes that accessibility requires helping users understand and educate with content, not just retrieve it, and users can generate metadata to provide context.