Conséquemment, la plupart des principaux fournisseurs et créateurs de documentation audiovisuelle conçue pour les salles de classe ont dû cesser leurs activités — il s'agissait d'organisations dont le chiffre d'affaires annuel s'élevait à 50 ou à 60 millions de dollars, comme l'Encyclopedia Britannica, la American Education Corporation, McGraw-Hill Films et la Learning Corporation of America.
That was eventually incorporated into their Copyright Act. As a consequence, most of the major providers and creators of audiovisual material for the classroom—organizations such as Encyclopedia Britannica, American Education Corporation, McGraw-Hill Films, and Learning Corporation of America, which were all companies generating $50 million or $60 million worth of business per year—went out of business.