| 摘要 |
A tape cartridge, e.g. for containing a spirally wound optical recording tape, is provided with safety details to prevent access to the tape by a cartridge user or by an unintended tape drive, e.g., a magnetic tape drive. According to a preferred embodiment, a movable door-locking member on the cartridge's tape access door is normally covered by a movably mounted gate member which blocks physical contact by a user, or by a door-unlocking mechanism of the tape drive. When the cartridge is loaded into an appropriate tape drive, gate-moving structure associated with such tape drive operates to move the gate member to an unblocking position in which the door-locking member is accessible to the unlocking mechanism of the tape drive. The invention enables a single tape cartridge to be used in different types of tape drives, such as optical or magnetic tape drives, with only minor modification to the cartridge's access door.
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