Patent ID: 7065498

Claim:
A server for a merchant computer system, the server comprising: a file store configured to store a range of audio/video products in respective product files and client history data, the client history data includes a personal client file for individually identified clients and stores past purchasing records of the client; a dialogue unit operable to invite and receive a client selection from among the products, to identify a personal client file corresponding to the client, and to define a degrade level signal dependent upon the identified personal client file containing client history data stored in the file store; a product reader connected to read the product files from the file store to generate a digital audio/video signal; and a signal processing unit having an input selectively connectable to receive the digital audio/video signal from the product reader, a processing core operable to apply a defined level of content degradation to the digital audio/video signal creating a degraded digital audio/video signal having a degradation in perceived quality corresponding to the defined degrade level signal of the dialogue unit, and an output connected to output the degraded digital audio/video signal.