A plurality of storage trays are arranged for a stacked relationship relative to one another defined by side walls mounting projections on top surfaces of the side walls received within slots directed through bottom surfaces of an adjacent side wall of an overlying tray. The tray structure defines a cavity between a forward edge of a floor and a rear first wall. A rear second wall is spaced relative to the first wall to mount spaced flanges therewithin, wherein the flanges are further received within openings within an overlying tray. A ratchet plunger is positioned medially of the first rear wall to provide selective projection of a compact disc positioned on the floor in communication with the plunger. A modification of the invention includes an underlying support base formed with fiber optic cables directed through the support base and cooperative with fiber optic cable segments positioned within each of the overlying trays to provide visual indication of proper registration of each tray relative to one another, whereupon misalignment provides a discontinuity in an associated fiber optic cable line indicating such misalignment.