A perpendicular magnetic recording medium, comprises a substrate; a soft-magnetic layer formed on the substrate; an NaCl-type oxide layer for orientation control formed on the soft-magnetic layer, having a thickness of from more than 0 to less than 10 nm; and a magnetic recording layer formed on the NaCl-type oxide layer for orientation control, comprising a maghemite thin film. In a first mode, the batter is preferably handled by mixing up one batch at a time from materials whose input quantities are specified in terms of defined weight-ratios, and then the batch is used up completely until depleted. In addition, the present invention has broad applicability, as it does not require the channel power-delay profile to be of certain specific types and it can operate in systems where pilot subcarriers have an irregular configuration. The video screen then displays the mechanical reels in the rearranged order.