To provide a pre-information recording device capable of improving accuracy of rotation control of a DVD-R having pre-information recorded therein by wobbling, the DVD-R having pre-information recorded therein, and an information recording device.
In a groove track 2, the first half of the groove track 2 corresponding to one sync frame (EVEN frame or ODD frame) is wobbled by a fixed wobbling frequency f0, and the latter half of the groove track 2 is wobbled by a wobbling frequency f1 or f2 corresponding to pre-information to be recorded, and the pre-information is recorded. During recording of recording information, a wobbling frequency f0 is detected for each sync frame, and rotation control is executed for the DVD-R, based on this detected frequency.
SUZUKI TOSHIO
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