A manufacturing method of a magnetic recording medium, and the like are provided, which can suppress misalignment of a processed shape of divided recording elements and magnetic degradation and can efficiently manufacture a magnetic recording medium having good magnetic characteristics. The seat back and at least part of the arm portions substantially define a whirlpool area and the arm portions define an open span through which the legs of a user extend when he is seated in the alcove whirlpool seat. The non-network media link interfaces provide for limited information encoding to prevent network protocol information from being transferred between the first and second networks.