| 摘要 |
In a "Pay per view" system ( 5 ), a playback device ( 1,2,3 ) of a user of the "Pay per view" system ( 5 ) obtains a playback authorization by an authorizing device ( 4 ) from a recording carrier ( 13,14 ) before playback of a coded playback information item (CWI) of a chargeable film. For granting the playback authorization, the authorizing device ( 4 ) bills a playback charge to the user. Inter alia, recorder identification information items (RKWI) identifying recording devices ( 1,2 ) that have contributed to creating the copy of the recording carrier ( 13,14 ) played back by the playback device ( 1,2,3 ) are stored on the recording carrier ( 13,14 ). In the course of granting the playback authorization, bonus information evaluating means ( 21,22 ) store the recorder identification information items (RKWI) transferred by playback devices ( 1,2,3 ) to the bonus information evaluating means ( 21,22 ). At billing instants, the bonus information evaluating means ( 21,22 ) transfer a bonus information item (BI) for the users of the recording devices ( 1,2 ) identified by the recorder identification information items (RKWI) and grant these users benefits.
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