Information recording medium and its control method and information recording/reproducing method

摘要

An information recording medium includes data concerning a maximum linear velocity (V1max) and a minimum linear velocity (V1min) at a first location on the medium and a maximum linear velocity (V2max) and a minimum linear velocity (V2min) at a second location on the medium, are recorded at a predetermined location on said medium, and at the first and second locations both of which are located at different locations on the medium, performing selectively CLV/CAV (Constant Linear Velocity/Constant Angular Velocity) control or alternatively a CLV/CAV-hybrid control.