Optical disk and process for producing the same

摘要

An optical disk includes a pair of disk substrates, each having a groove corresponding to a stamper holder, and an adhesive layer interposed between the disk substrates. At least one of the disk substrates has a recording surface and a reflective layer covering the recording surface. At least one of the disk substrates has, at the circumference of the groove, a blocking layer for preventing the adhesive from oozing out into the groove when the disk substrates are adhered to each other via the adhesive to form a single disk.