The Library Catalog contains both Audio and Video media. Both media types have many subcategories including Cassettes and Music CDs for Audio and DVD and VHS recordings for Video.
Although there is no facet Category specifically for media, you can find individual facets under both Format and Collections. (See left and right boxes.)
Just do a normal search for your topic, then click on the relevant facet to narrow the results.
An alternative method is to skip the Library Catalog completely and use one of the library's Lists. These lists allow the user to quickly scan up to fifty items at a time in a number of catagories.
Audio Visual Collection - NOTE: These may be checked out, along witha VHS or DVD player, for three days.