Optical disc apparatus with tracking error compensation

An optical disc apparatus comprising:

• an optical disc, having recording tracks including hollow and convex portions formed by a guide groove on said optical disc, for recording an information signal using a change in a local optical constant or a physical shape by the application of a light beam;
• an optical system for applying a light beam generated by a light source onto said optical disc, wherein said light beam forms a scanning spot on the optical disc that covers a width of a recording track and a portion of each of two adjacent tracks;
• photodetection means for detecting the light beam, after at least one of reflection from the optical disc and transmission through the optical disc, and generating an output signal;
• first moving means for moving said light beam applied to said optical disc in a direction perpendicular to a direction of said recording track;
• second moving means for relatively moving said light beam applied to said optical disk in said direction of said recording track;
• tracking error detection means for receiving said output signal from said photodetection means and detecting an amount of deviation between a position of the light beam applied to said optical disc and the recording track in a direction perpendicular to the direction of said track, wherein said tracking error detection means outputs a tracking error signal corresponding to the amount of deviation;
• tracking controlling means for controlling the first moving means in response to said tracking error signal such that said scanning spot is substantially centered on the recording track;
• judging means for judging whether the information signal has been recorded on either of said two adjacent tracks in the portions of the two adjacent tracks that are covered by the scanning spot, and generating a compensation signal when the information signal has been recorded on only one of the two adjacent tracks in the portion covered by the scanning spot;
• and
• compensation means for eliminating a DC offset in the tracking error signal outputted by said tracking error detection means in response to the compensation signal generated by said judging means.