Patent ID: 7474506

Claim:
A magnetic recording medium comprising: a servo pattern region formed on at least one surface side of a substrate, the servo pattern region having a servo pattern formed of a concave/convex pattern having a plurality of convex portions and concave portions, at least projecting end portions of the convex portions are formed of a magnetic material; and a data recording region formed on the one surface side of the substrate, the data recording region having a data track pattern on which a concentric or spiral data recording track is formed, wherein the concave portions are formed in an address pattern region of the servo pattern region such that the maximum lengths, which are located in the respective same radius regions each having the same distance from the center of the data track pattern, of the respective lengths along the rotating direction of the substrate of projecting end surfaces of the respective convex portions constituting the concave/convex pattern for an address pattern are set to first lengths that are double the minimum lengths along the rotating direction of the projecting end surfaces of the respective convex portions in the respective same radius regions.