Substrate for optical recording medium, optical recording medium, master disc, master disc recording apparatus, and signal generating apparatus

摘要

A substrate for an optical recording medium, includesrecording tracks formed in guide grooves on a disc; andan address section having an address pit sequence formed between the recording tracks in the guide grooves along an information reading direction of the recording tracks.The recording tracks in the guide grooves are divided into a prescribed number of zones.In each of the zones, the center of the address section corresponding to a recording track in the radially outermost or radially innermost guide groove is disposed so as to shift in a radial direction of the disc in relative relationship to the center of the recording track in the guide groove.