Abstract: An insert for a carrying case is adapted to receive and selectively store boxed tape cassettes and 8-track tape cartridges in one or more longitudinal troughs. Each trough includes side walls spaced to accommodate the width of an 8-track cartridge, a bottom wall, and a plurality of partitions projecting inwardly from the side walls toward one another, longitudinally spaced to accommodate the thickness of 8-track cartridges, forming a plurality of storage compartments adapted to receive 8-track cartridges. An arrayed plurality of pairs of shelves, each adapted to receive and store one boxed cassette, includes substantially congruent shelves recessed within each of the side walls located above the topmost extensions of the partitions. The longitudinal spacing between the side edges of each shelf accommodates the thickness of a boxed cassette, and the distance between the rear walls of each pair of shelves accommodates the width of a boxed cassette.