Patent ID: 7443622

Claim:
A magnetic recording medium comprising a recording layer divided into a plurality of data areas and a plurality of servo areas to record information, wherein each of the servo areas has a burst signal region for detecting a position of a magnetic head at each track in the data areas, the burst signal region is provided with burst signal groups each of which is longer in a length-wise direction of the track than in a width direction of the track, the recording layer is formed in a concavo-convex shape in a predetermined servo pattern in each of the servo areas, with servo signal unit portions formed as either convex portions or concave portions of the concavo-convex shape, a plurality of burst signal unit portions of the servo signal unit portions are arranged side by side in a row in the length-wise direction of the track in each of the burst signal groups, at least the burst signal unit portions of the servo signal unit portions are generally elliptical in shape when viewed from a direction of thickness, and the burst signal unit portions are configured such that 1<Rt/Rs≦2 is satisfied, where Rt is a width in the width direction of the track, and Rs is a width in the length-wise direction of the track.