PURPOSE: To effectively use the optical recorder-reproducer even at the projecting of the film having been magnetically recorded by diverting the optical recorder- reproducer to a stop projecting means in the case of performing magnetic recording and reproducing with the cine projector.

CONSTITUTION: In case audio information signal F1 is optically recorded in a film F, a film stop control part F2 is not provided. The audio information F1 is reproduced by a photo detector 12. In case the audio information F1 is magnetically recorded, the information F1 is reproduced with a magnetic head. When the stop control part F2 on the film F comes to the position of the photo detector 12, current supply to an electromagnetic coil 26 is accomplished to space a pinch roller 9 from a capstan 8, thereby stopping film feeding. Since stop projection is accomplished in this way, the optical recorder-reproducer may be effectively used even at the projecting of the film having been magnetically recorded.