Abstract: A tape cassette storage container comprises a rigid backing frame member (50,51, 56, 57), provided on one side with fastening means for attachment of the container to a support member, and a series of successive adjacent storage compartments or pockets (61) for individual tape cassettes (65), in which the cassettes (65) are stored generally edge-to-edge, so that the cassettes (65) lie generally parallel or at a slight inclination to the plane of the backing frame member (50).