| 摘要 |
A step h is provided between a recording region 2 including servo patterns Ps1, Ps2 and the recording track pattern Pw and a non-recording region 3 except the servo patterns Ps1, Ps2 and the recording track pattern Pw. A relation between a servo pattern width Ts and a track pitch Tp is set to be Tp(n-0.1)</=Ts</=Tp(n+1), while a relation between a magnetic readout width Wr of the magnetic head and the track pitch Tp is set to be 0.9 Tp</=Wr</=1.1 Tp. A dead zone in a tracking error signal indicating a position of a magnetic head is to be eliminated, thus rendering it possible to position the magnetic head accurately and speedily.
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