Audio data recording system for recording voice data as an optically readable code on a recording medium for recording still image data photographed by a camera

An audio data recording/reproduction system including an independent, portable camera for respectively recording still image data on a silver salt region of a film and audio data on a magnetic recording region of the film. A silver salt film developing/printing device is provided for developing the still image data recorded in the silver salt region of the film, and for printing the developed still image data on a front surface of a photographic paper as visible data. A conversion device is provided for reproducing the audio data recorded in the magnetic recording region of the film, and for converting the reproduced audio data into an optically readable code. And a recording device is provided for printing the optically readable code produced by the conversion device on a rear surface or a blank section of the front surface of the photographic paper.