ABSTRACT
Media that can be recorded to, removed, and then transported to another device has long been a dominant force in most of the entertainment industries, long before the emergence of the Internet, microwave communications, etc. Metallic, shellac—paper—wax-based composites, and polyvinyl chloride records were long considered the only durable (primarily consumer) means to exchange recorded music and voice among users. Analog audio tape became the next formidable method for the common exchange of media, and it was one of the earlier forms for easily recording, playing back, and rerecording data for computers.
