LAS VEGAS -- DVD and the future of video was a frequent topic of discussion during last month's Home Entertainment 2002 convention of the Video Software Dealers Association, Encino, Calif., here. With a new format focused on business meetings, supermarket retailers came to the VSDA show from around the country to talk to suppliers, attend educational sessions and enjoy social events, such as a dinner put on for grocery executives by distributor Ingram Entertainment, La Vergne, Tenn.