Abstract: A storage tray has opposed first sets of spaced ribs forming parallel compartments and a second set of shorter ribs transversely disposed between the first sets of ribs with the spacing being one first rib and one adjacent second rib being sized to slidably receive one single compact audio disc box, so that two single compact audio disc boxes fit every compartment. The shorter ribs are formed with guide flanges. Two adjacent single boxes may be removed, and then one dual audio disc box is received in the compartment between adjacent first ribs, and with the second rib being slidably and guidingly received in the back recess of a conventional dual audio disc box. The storage tray is self-interlocking with another storage tray so as to form a self-contructing cabinet.

Abstract: A storage tray has opposed first sets of spaced ribs forming parallel compartments and a second set of shorter ribs disposed between the first sets of ribs with the spacing being one first rib and one adjacent second rib being sized to slidably receive one single compact audio disc box, so that two single compact audio disc boxes fit every compartment. Two adjacent single boxes may be removed, and then one dual audio disc box is received in the compartment between adjacent first ribs, and with the second rib being slidably received in the back recess of a conventional dual audio disc box. The storage tray is self-interlocking with another storage tray so as to form a self-constructing cabinet.