An information source management system 11 performs inventory management for CDs and a material information management progress programming system 12 performs programming. An material information registration system 13 compresses the musical numbers of the CDs for holding on a proprietary server and...http://www.google.de/patents/US7342935?utm_source=gb-gplus-sharePatent US7342935 - Method and apparatus for sending out multi-channel digital data, method and apparatus for programming the information and method and apparatus for managing multi-channel digital data
