Simulated 35mm film with soundtracks. the outer strips on both sides are the digital soundtracks

A soundtrack, also written sound track, can be recorded music that is synchronized to the images of a motion picture. Soundtracks can also be part of a book, television program, radio program or video game. A commercially released soundtrack album can be of music from a film or TV show. The term can also mean the physical area of photographic film that contains the synchronized recorded sound. view more...