An information recording medium includes: record information pieces logically independent of each other and constituting a hierarchical structure of hierarchical layers; layer information pieces for specifying one of the hierarchical layer; kind information pieces for indicating kinds of information...http://www.google.fr/patents/USRE39110?utm_source=gb-gplus-shareBrevet USRE39110 - Information recording medium, apparatus for recording the same and apparatus for recording the same
Information recording medium, apparatus for recording the same and apparatus ...
