INFORMATION RECORDING DEVICE AND METHOD, INFORMATION REPRODUCING DEVICE AND METHOD, AND COMPUTER PROGRAM

摘要

An information recording device (1) is provided with a first judging means (191) for judging whether a tracking error signal is a first threshold value or more; a detecting means (192) for detecting the rotating angle of an information recording medium (100) as a detection angle when it is judged that the tracking error signal is the first threshold value or more; and a second judging means (193) for judging whether the tracking error signal is at the first threshold value or more at the same detection angle.