Patent ID: 7526178

Claim:
A processing system comprising: a video and/or audio material processing device, the material processing device having plurality of inputs configured to receive respective pieces of material to be processed, the pieces having respective identifiers, an output configured to output the processed material, which is a combination of the input material, and a state output configured to output data defining a state of the material processing device; and a processing unit configured to process identifiers of video and/or audio material, the processing unit detecting the identifiers of the input material, determining from the state data received from the material processing device, the combination of the input material forming the output material, generating an identifier for the output material and associating the identifier of the output material with the identifiers of the input materials determined to be used to form the output material, wherein the identifier of the output material is stored in a database in association with the identifiers of the input materials based on the association, all identifiers are removed from the output material prior to distribution over a network.