Patent ID: 7519832

Claim:
A method of creating a secure multimedia data product, wherein is provided at least one musical work, and at least one auxiliary sound item for use therewith, comprising the steps of: (a) selecting an encryption key; (b) encrypting said at least one auxiliary sound item according to said encryption key; (c) writing said at least one musical work to a first storage medium according to an industry standard format; (d) writing said encrypted at least one auxiliary sound item to a second storage medium; (e) writing a rule set to a third storage medium; (f) distributing said at least one musical work and said encrypted at least one auxiliary sound item to an end-user; (g) providing at least a portion of said encryption key to said end-user; (h) providing a replay tool to said end-user, said replay tool being at least for reading said at least one auxiliary sound item, unencrypting said at least one auxiliary sound item, and interacting therewith according to said rule set; (i) using said replay tool and said provided at least a portion of said encryption key to unencrypt at least one of said encrypted auxiliary sound items; and, (j) interacting said at least one un-encrypted auxiliary sound items with at least one of said at least one musical work within said replay tool according to said rule set, thereby creating a modified performance of said at least one musical work.