DATA STORAGE EQUIPMENT-NAMELY, THIN FILM STORAGE MEDIA OF PLASTIC, METAL AND GLASS COMPRISING OPTICAL FILM, OPTICAL PLATE TRANSPARENCIES, MEDIA OF PLASTIC, METAL AND GLASS FOR LASER READING, ABLATABLE MEDIA OF PLASTIC, METAL AND GLASS FOR OPTICAL READING AND WRITING, AND LASERS MODIFIABLE TO STORE DATA FOR USE IN COMPUTERS, IN INFORMATION STORAGE AND RETRIEVABLE EQUIPMENT, AND IN DATA PROCESSING EQUIPMENT