Tape cassette having first and second write inhibit mechanisms

A tape cassette in which a tape body is wound across a pair of tape reels rotatably supported by the cassette body,

• the tape cassette including:
• a first write protect mechanism provided at a position on said tape body corresponding to a write protect mechanism of another tape cassette, said another tape cassette being structurally adapted for loading into a recording/reproducing unit into which the tape cassette can be loaded;
• and
• a second write protect mechanism provided at a different position on said tape body not corresponding to the write protect mechanism of the another tape cassette,
• wherein the first write protect mechanism is placed in a write protect state at all times,
• wherein plural write protect mechanisms are provided as the first write protect mechanism,
• wherein the plural first write protect mechanisms and the second write protect mechanism are provided at the bottom surface of the cassette body in series along one side surface of the cassette body in such a manner that they are close to each other,
• wherein the first write protect mechanism is comprised of a discrimination hole provided at the cassette body, and the second write protect mechanism includes a discrimination hole provided at the cassette body and an erroneous recording prevention member for opening and closing the last-mentioned discrimination hole,
• wherein the erroneous recording prevention member is caused to undergo movement operation in a manner substantially perpendicular to the plane surface where the discrimination hole is provided at the cassette body.