RADIAL POSITION REGISTRATION FOR NON-DATA SIDE OF OPTICAL DISC

摘要

The invention provides reference patterns marked on a non-data side of an optical disc. When the optical disc, according to the invention, is installed within an optical information recording apparatus, the reference patterns enable an optical pick-up unit of the optical information recording apparatus to register at at least one reference radial position on the no-data side of the optical disc. The at least one reference radial position is for assisting the optical pick-up unit to record a label on the non-data side of the optical disc.