Phonograph "gramophones" or "talking-machines". His "gramophone record" was the first disc record to be offered to the public. They were five inches (12.7 cm) in diameter and recorded on one side only. Seven-inch (17.5 cm) records followed in 1895. Also in 1895 Berliner replaced the hard rubber used to make the discs with a shellac compound. Berliner's early records had poor sound quality, however. Work by Eldridge R. Johnson improved the sound fidelity to a point where it was as good as the cylinder. By 1901, ten-inch (25 cm) records were marketed by Johnson and Berliner's Victor Talking Machine Company, and
Book-and-record set its offshoot Power Records) and others, from the dawn of long-playing records and the 45rpm single until the digital age. In the late 1940s and early 1950s, Capitol Records produced many book-and-record sets for children, ranging from everything from Bozo the Clown to the classical music fantasy "Sparky's Magic Piano". A "picture storybook" of the 1982 movie "E.T. the Extra-Terrestrial" narrated by Michael Jackson became a highly prized collectible, after it went out of print. Newer sets may still be found among recordings for children. Book-and-record set Book-and-record sets are a form of entertainment for children, consisting of a picture