Patent ID: 9741383
Date: 2017-08-22
CPC Classifications: G11B

Claim:
1. An optical disk recording method for dividing data into units of predetermined blocks and recording the data in an optical disk medium, the optical disk medium including a track in which the data is recorded, the track being formed by wobbling and radially divided into a plurality of zones, and a clock ratio n/m (n and m are natural numbers of 1 or more) of a recording clock to a wobble clock being preset for each of the plurality of zones, the optical disk recording method comprising: detecting a wobble signal corresponding to the wobbling from the optical disk medium; generating a wobble clock by multiplying the wobble signal by a predetermined multiplying factor; identifying a present position by reproducing ADIP (ADdress in Pregroove) indicating a position of the track from the wobble signal and the wobble clock; generating a recording clock having the clock ratio n/m to the wobble clock; identifying a data address present position located in a zone different from a recording target zone, from the present position located in the zone different from the recording target zone, a start end position of the ADIP in the recording target zone, a start end position of the data address in the recording target zone, and the clock ratio n/m, and identifying a recording start position based on the data address present position; and recording the data from the recording start position in the recording target zone.