| 摘要 |
PROBLEM TO BE SOLVED: To provide a servo information writing device capable of writing highly accurate servo information as a result by selecting a proper servo pattern among a plurality of types of servo patterns. SOLUTION: The servo information writing device includes a testing device 10 for performing test processing to select a proper servo pattern as servo information among the plurality of types of servo patterns recorded beforehand on a disk medium 2 incorporated in a disk drive 1. The plurality of types of servo patterns are servo pattern groups with different track pitches, eccentricities or the like. COPYRIGHT: (C)2006,JPO&NCIPI
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