A cassette for the 3Discover stereo filmstrip viewer. Each cassette holds 12 stereo pairs on 35 mm film. The film is advanced by a motor powered by two AA batteries. A sensor stops the film when the image is in position. The lenses are aspherical, which sharpens focus by eliminating spherical aberration. The interocular distance is adjustable.

The company 3D Vision International was started by Jacques Côté around 1994 to develop the 3Discover viewer. Sales began in 1996. There were approximately 100 titles released, all photographed by Jacques Côté and Michel Hamel. Unfortunately, sales were poor and the viewer was discontinued in 1983 (Labbe 2026). Côté and Hamel bought up the remaining stock and Côté continued to sell viewers and cassettes on the 3Dvision.ca website (at least until 2010, the last copyright date on the site) (Côté 2010).