Recording medium device for use with a tape cartridge having an auxiliary memory viewable through a cartridge discrimination opening

A recording medium device comprising:

• a cartridge body within which a recording medium is accommodated;
• a contact terminal positioned at an inside of a terminal opening portion opened at an outer circumferential portion of the cartridge body and electrically connected to a connector of an external device;
• a shutter member interposed between the terminal opening portion and the contact terminal to open or close the terminal opening portion;
• and
• a cartridge discrimination opening indicating a specification of the recording medium device positioned at a corner portion of a bottom surface side of the cartridge body,
• wherein the cartridge discrimination opening serves as an admission opening into which a shutter drive member of the external device side for operating the shutter member is admitted.

A recording and/or reproducing apparatus comprising:

• a connector electrically connected to a contact terminal disposed at an inside of a terminal opening portion of a side of a recording medium device;
• and
• a shutter drive member adapted to be admitted into a cartridge discrimination opening provided at a side of the recording medium device to allow a shutter member for opening and closing the terminal opening portion to operate,
• wherein the shutter drive member detects the cartridge discrimination opening of the recording medium device side to discriminate between the recording medium device provided with the contact terminal and a recording medium device which is not provided with the contact terminal.

A recording and/or reproducing apparatus comprising:

• a connector electrically connected to a contact terminal disposed at an inside of a terminal opening portion of the side of a recording medium device;
• and
• a shutter drive member adapted to be admitted into a cartridge discrimination opening provided at a side of a recording medium device to allow a shutter member for opening and closing the terminal opening portion to operate,
• wherein the shutter drive member detects the cartridge discrimination opening at the side of the recording medium device to discriminate between the recording medium device provided with the contact terminal and a recording medium device which is not provided with the contact terminal.