| 摘要 |
According to one embodiment, a magnetic disk drive uses a patterned medium on which data tracks having a recording layer and grooves having no recording layer as a disk. The magnetic disk drive includes a correction unit which corrects the head center position of a write head so that a head edge portion on the side to which the top edge of the write head is tilted falls within or substantially falls within a groove on the side to which the top edge of the write head is tilted.
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