| 摘要 |
A method for use in reproducing an audiovisual product. The audiovisual product has plurality of cells of audiovisual data whose playback is controlled by a plurality of sequence instructions that each has a predetermined structure location within the audiovisual product. A playback code comprising a first set of digits is provided. A randomly-selected subset of the digits of the playback code is specified and received as an access code. A destination structure location within the audiovisual product is calculated by applying a destination function to the access code. A sequence instruction corresponding to that location is selected by jumping to the calculated destination structure location.
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