| 摘要 |
A recording tape cartridge has: a case rotatably accommodating a single reel with which one end portion of a recording tape is engaged and on which the recording tape is wound, the case having an opening which is formed at a corner portion of the case at a side of loading the case into a drive device, the opening being for pulling-out of a leader member attached to another end portion of the recording tape; and a projecting portion provided at an inner surface of the case in a vicinity of the opening. The projecting portion is provided substantially parallel to a direction of loading the case into the drive device.
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