| 摘要 |
PURPOSE: To provide various kinds of individual information regarding the recording medium cassette to a recording/reproducing device and/or to record various kinds of individual information regarding the recording medium cassette. CONSTITUTION: A recessed part is formed on the inside surface of bottom wall of the tape cassette 1, and a printed circuit board 11 provided with four terminals 12 and mounted with an IC 13 is engaged with the recessed part for fixing, then four terminals are separately connected to a power source terminal, clock terminal, input/output terminal and earth terminal of the IC respectively. The terminals are fronted onto the outside through a fronting hole 10 which is formed on the bottom wall 7 of tape cassette. Detection terminals 30 connected to respective signal input/output terminals of a power source, earth, clock and microcomputer, are provided on a VTR 14. When the tape cassette is loaded on the VTR, the detection terminals are brought into contact with the terminals of tape cassette, then the information being recorded in the IC is read by the microcomputer and also the information is written into the IC as necessary.
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