"This online tutorial was developed for curators, librarians, archivists, collections managers and other staff who are involved in managing machine-based media collections in cultural institutions. Viewers will learn basic principles and concepts for managing audiovisual collections and will be provided with information and strategies for preservation, contracting for reformatting, and finding funding opportunities."

Save the date!  The 2008 joint conference of OLAC (Online Audiovisual
Catalogers) and MOUG (Music OCLC Users Group) will take place in
Cleveland, Ohio, from Friday, September 26 - Sunday, September 28, 2008.
Preconference will occur Thursday, Sept. 25th.

When I first saw this tool, it was focused mostly on music.  It now includes a wide number of tools to support audiovisual cataloging, including film, drama, & dance reference works.  Each citation includes a nice annotation.   Also, includes a list of tools which were deemed not useful (for authority work)