| 摘要 |
A magnetic disk of a magnetic disk apparatus includes a flat disk-shaped substrate having a recording region formed on at least one of front and back surfaces and patterned depending on the presence of a magnetic material. The recording region includes a data recording region, an annular landing region formed continuously to the data recording region, and a plurality of servo regions. The data recording region has a plurality of magnetic tracks extending in a circumferential direction of the substrate, respectively, and provided in the radial direction of the substrate at a predetermined pitch. The recording region includes a plurality of recognition tracks extending in the circumferential direction of the substrate, respectively and arranged in the radial direction of the substrate concentrically with the magnetic tracks at a visually recognizable pitch larger than the pitch of the magnetic tracks of the data recording region.
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