Optical information recording/regenerating apparatus and track scanning method for an optical information recording/regenerating apparatus

An optical information recording/regenerating apparatus, comprising:

• an optical head for irradiating at least one regeneration light spot to a plurality of tracks on an optical recording medium, which includes numerous tracks in which information is modulated and recorded with error-correcting codes appended, simultaneously via an objective optical system;
• a driving means for driving said at least one regeneration light spot and said optical recording medium relatively to each other;
• a regenerating means for simultaneously scanning said plurality of tracks to which said optical head has irradiated said at least one regeneration light spot, and then reading recorded information from said plurality of tracks;
• error-correcting means receiving the recorded information read by said regenerating means, for performing error correction using said error-correcting codes for said plurality of tracks;
• error-correction result memory means for storing results that indicate whether or not said error-correcting means succeeded in error correction;
• and
• a control means responsive to results stored in said error-correction result memory means which indicate that error correction has not succeeded for the information regenerated from at least one track among the information regenerated from the plurality of simultaneously-scanned tracks, for controlling the drive of said driving means so that the track for which said error correction has not succeeded will be included in a scanning range, which scanning range is an area which consists of a plurality of simultaneously-scanned tracks.