| 摘要 |
The invention provides a disk cartridge 2 comprising a flat rectangular parallelepipedal cartridge body 20, and a disk 21 rotatably enclosed in the cartridge body 20. The cartridge body 20 comprises opposite side walls 2b, 2c formed in parallel to the direction of insertion of the cartridge into a disk player and a front wall 2a facing toward the direction of insertion, and has a shutter 3 slidable along the side wall 2b for exposing the signal bearing surface of the disk 21. The front wall 2a is in the form of a curved wall or polygonal wall having a central portion formed in the closest proximity to the outer periphery of the disk 21 and opposite side portions formed as retracted toward a direction opposite to the direction of insertion. The front wall thus shaped renders the cartridge body 20 compacted and readily indicates to the user the direction of insertion into the disk player.
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