It's music, dance and film rolled into one combustible medium. It's rock video.

"Hot Rock on a Saturday Night," to be held Saturday, is a rock video workshop assembled by the Women Make Movies IV Festival, which continues through Sunday. If the panel members who will lead participants in discussion are not terribly recognizable, the same cannot be said of their work. Zelda Barron, who has produced Culture Club's "Miss Me Blind" and "I'll Tumble 4 Ya" videos, heads a panel that will also include Peggy Pierpont, producer of videos for Stevie Nicks, George Benson and Herbie Hancock. A compilation of their videos will be shown.

Also speaking about the creative process and about the production role of women in rock videos: Max Almy, a 3-D computer animation artist; Lynn Healey, former editor in chief of Videofile; and Merrill Aldighieri, who recently created a dance video titled "Danspak."

Some local filmmaking talent, among them Phyllis Ward and Virginia Quesada, will receive a little exposure on Sunday at the AFI, when the festival features its first Mid-Atlantic Festival Showcase. Nine films will be screened, beginning at 2 p.m., and the directors will be on hand to discuss their work.