Patent ID: 8620967

Claim:
A method comprising: receiving a recording, wherein the recording includes computer readable media data; generating, by use of one or more processors, an internal identifier for the recording, wherein the internal identifier is a signature that uniquely identities the recording; adding the internal identifier to a plurality of internal identifier fields of a plurality of structures for metadata, wherein the plurality of structures includes metadata associated with a plurality of different occurrences of the recording, wherein the metadata included in the structures is data that describes the computer readable media data included in each of the plurality of different occurrences of the recording, and wherein each of the plurality of structures is stored in a database, and generating, by use of the one or more processors, a link between the internal identifier in the metadata of each of the plurality of different occurrences of the recording and an external identifier not in the metadata, wherein the external identifier is derived from audio or video data of the recording.