A recording medium cartridge is provided with a cartridge medium and cartridge memory in a cartridge case composed by being divided into two halves, in which the cartridge memory has a fragile part partially formed therein, one side bordered on the fragile part is firmly fixed to one of the two halves, and the other side is firmly fixed to the other of the two halves.

 
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< Tape cartridge with rear wall extended surface positioned in region of reference surface formed around position-regulating hole

> Head suspension with chip as structural element

> Head gimbal assembly including dampening for air bearing vibration
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