Abstract: An improved optical disc for use in the manufacture of a multilayer optical disc. The improved optical disc has a first side with a data layer and at least one projection extending outward from the first side. The projection separates the first side of the improved optical disc from another optical disc used in the manufacture of the multilayer optical disc, thereby providing a uniform adhesive layer between the discs. A mutilayer optical disc and a method of making a multilayer optical disc utilizing the improved optical disc is also described.
Type:
Application
Filed:
February 6, 2001
Publication date:
August 8, 2002
Applicant:
Sony Corporation and Digital Audio Disc Corporation