Abstract: A package for a cassette storage case (2) that has a cassette insertion opening (4) formed at one lateral side thereof, cassette guide cuts (7) formed in main front and rear surfaces (5) and (6) thereof at the side of the opening (4), and a cassette receiving space (3) defined by the front and rear surfaces (5) and (6) and the other lateral side thereof, so that a tape cassette (1) is inserted into the cassette receiving space (3) through the cassette insertion opening (4). A sealing/packaging tape (1) is wound on the cassette storage case (2) across the cassette insertion opening (4) and (10) is wider than the cassette guide cuts (7) in the cassette storage case (2). Thus the sealing/packaging tape (10) covers the cassette guide cuts (7) to seal and wrap the cassette storage case (2). Thereby, a positive sealing and packaging can be realized with a reduced amount of the packaging material (to save the resources).