Recordable Optical Recording Carrier and Method for Manufacturing Recordable Optical Recording Carrier Compatible with CD-R

摘要

An optical recording carrier including, in a data recording area, a continuous-grooved main track (12) for recording primary data to be stored, and a subtrack (13) for recording control data including parameter data and address information. The control data includes a clock signal needless to be provided by the main track (12). The subtrack (13) has a narrower full width at half maximum (FWHM) and a shallower depth than the main track (12). The distance (d') between the main track (12) and the subtrack (13) is not more than half of that between two adjacent main tracks (12). The main track (12) and the subtrack (13) form a double-spiral pattern. When recording data, a recording spot tracks mostly along the centerline of the main track (12) and reads the control data in the subtrack (13) simultaneously to control the recording process. A method for manufacturing a recordable optical recording carrier compatible with a conventional CD-R is also provided.