INFORMATION RECORDING AND REPRODUCING DEVICE AND METHOD FOR RECORDING AND REPRODUCING INFORMATION, INFORMATION REPRODUCING DEVICE AND METHOD FOR REPRODUCING INFORMATION, AND INFORMATION RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide an information recording and reproducing device and a method for recording and reproducing information, an information reproducing device and a method for reproducing information in which the problem based on conventional training data and the problem due to the propagation of an identification error or the like are solved, and a satisfactory circuit adjustment and correct medium evaluation are performed, and to provide an information recording medium. SOLUTION: Modulation tables 22a and 22b for preparing a plurality of modulation data candidates for mixed data of user data and training data, a selector 26 for selecting each modulation data candidate, and a counter 25 for counting DSV of selected modulation data to control the selector 26 are provided. The DSV outputted from the computer 25 is set to a prescribed value, in a state where the training data are inputted.