Abstract: A photosensitive medium, such as motion picture film, having digital data in multiple formats and analog audio signals photographically recorded thereon, and a system for photographically recording digital data (preferably including digital audio bits) in multiple formats and optionally also analog audio signals on a medium. Preferably, two digital soundtracks are recorded on the film, each in an array of bit areas arranged in row and column order, with the bit areas of one soundtrack between consecutive pairs of sprocket holes along one edge of the film, and the bit areas of the other soundtrack along the film edges outside the sprocket holes. Preferred embodiments of the invention include a camera assembly through which a motion picture film translates in real time.

Abstract: An add-on module for a contact printer used to manufacture a motion picture. The module enables the printing of a digital optical soundtrack on motion picture film from a sound negative using a standard contact printing process. The module includes spaced apart guide rollers and a main roller. Unexposed film is placed in contact between the main roller and the sound negative. The module further includes a fiber optic light source positioned adjacent to the sound negative for exposing the film and forming the digital soundtrack. The digital soundtrack is formed on a portion of the positive print which includes an area between each of the sprocket holes. In addition, the digital soundtrack extends from each sprocket hole to the edge of the positive print on both sides of the print.