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.
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.