Optical recording medium having a plurality of guide tracks transfer regions

A recording device for a recording medium having a recording layer capable of be performed in recording or reproducing of information with light irradiation and carried with a substrate, comprising;

• a support portion supporting a recording medium including a guide layer having guide tracks each followed by a light beam spot focused from an objective lens through the recording layer, the guide tracks disposed at a first pitch, and a guide track transfer region provided on said guide layer and having at least one or a plurality of shorter guide tracks in parallel with and between said guide tracks adjacent to each other in the extending direction of said guide track;
• and
• a detector portion for moving the light beam spot within said guide track transfer region to detect a tracking error signal.

A reproducing device for a recording medium having a recording layer capable of be performed in recording or reproducing of information with light irradiation and carried with a substrate, comprising;

• a support portion supporting a recording medium including a guide layer having guide tracks each followed by a light beam spot focused from an objective lens through the recording layer, the guide tracks disposed at a first pitch, and a guide track transfer region provided on said guide layer and having at least one or a plurality of shorter guide tracks in parallel with and between said guide tracks adjacent to each other in the extending direction of said guide track;
• and
• a detector portion for moving the light beam spot within said guide track transfer region to detect a tracking error signal.