| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic disk, a magnetic recording and reproducing method and a magnetic disk apparatus that improve recording density without deteriorating an S/N ratio of reproduced signals. SOLUTION: The magnetic disk on which signals are recorded and reproduced using a head whose azimuth angle changes according to a position of the radius, includes a first recording area comprising tracks where signals are recorded at an azimuth angle equal to or smaller than a predetermined value, a second recording area comprising tracks where signals are recorded at an azimuth angle greater than the predetermined value, and an overlapping area where adjacent tracks overlap in a part in a radial direction. The magnetic disk is configured so that a track pitch in the first recording area is different from a track pitch in the second recording area. COPYRIGHT: (C)2008,JPO&INPIT
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