FIELD: optical recording media and recording/reproducing devices. SUBSTANCE: optical recording medium has wobbulated track and grooves produced at specified interval on section between wobbulated track turns. Groove position is associated with preset wobble phase. Wobbulated signal arriving from track is used to control rotation of optical recording medium. Signals coming from tracks and grooves are detected by means of respective detecting means. EFFECT: enhanced record density, operating speed, reliability of recording medium rotation control, and precision of address information received. 20 cl, 15 dwg
