| 摘要 |
A cartridge envelope for removably accommodating a disc cartridge includes an envelope structure including top and bottom envelope panels 8 and 9, left and right side walls 10 and 11 and a rear wall 12, all molded together to define a cartridge chamber that opens outwardly in a direction counter to the rear wall through an insertion opening 13. At least one cartridge retaining member 17 including a flexible finger is formed in one of the walls 8 to 12 forming the envelope structure for removably retaining the disc cartridge 1 securely inside the cartridge chamber once the disc cartridge 1 has been inserted thereinto.
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