Record library

Public, academic and private libraries may have a department for, or be wholly dedicated to, sound recordings or audio-visual materials. Sound recordings may be of any format such as phonograph records (3 speeds, monaural, stereophonic, etc), cassettes, cartridges, tape reels or cylinders. Visual materials may include motion picture films, video cassettes, slides, photographs, etc. Materials may be only consulted, or may be circulated.