-----+
            |    |    |    |mdhd|    |    |    |    | Media Header Box             |
            +----+----+----+----+----+----+----+----+------------------------------+
            |    |    |    |hdlr|    |    |    |    | Handler Reference Box        |
            +----+----+----+----+----+----+----+----+------------------------------+
            |    |    |    |minf|    |    |    |    | Media Information Box        |
            +----+----+----+----+----+----+----+----+---------------------------