CPC G11B 20/1217 (2013.01) [G11B 20/18 (2013.01)] | 13 Claims |
1. A recording medium, wherein
the recording medium has recorded thereon
a multilevel code of at least three ML values produced by coding user data into a (d,k)-RLL code of the ML values, and
a particular pattern of the ML values that includes a run of repeated codes which is greater than a maximum run k of the multilevel code, and
patterns of the ML values whose magnitude of a cross-correlation value computed by using an NRZ (Non Return to Zero) code expressing the multilevel code by using the ML values which include 0 as a center value is equal to or lower than a threshold are recorded in adjacent tracks.
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