an integrally molded plastic holder for tape cartridges is provided wherein the holder is partitioned into an upper section and a lower section by two spaced apart ledges integrally formed therewith and wherein the upper and lower sections have a plurality of compartments dimensioned to receive a tape cartridge and wherein a plurality of resiliently tab portions are mounted between the upper and lower ledges so that a portion of each tab portion is located in a recess in a tape cartridge when the tape cartridge has been inserted into one of the compartments to restrain the removal of the tape cartridge from the compartment . the tab portions are mounted so that , when the tab portions are in the recesses , they are in an unstressed condition .