Optical information processing apparatus for stopping tracking and/or focusing controls in an area having preformat signal recorded therein.

摘要

An apparatus for recording and/or reproducing information by scanning of a light beam on a track of an optical recording medium while said track is tracking-controlled and/or focusing-controlled, the track having a preformat signal recorded partially in a longitudinal area thereof, wherein the tracking control and/or focusing control are stopped while the light beam passes through the area of the track in which the preformat signal is recorded.