Method for preventing the unauthorized playing of a storage medium, e.g. CD or DVD, before a fixed date, whereby the date is incorporated in the media and a drive reads the date, with playing only authorized if the date has passed

摘要

Method for preventing the unauthorized playing of a storage medium such as a CD or DVD has the following steps: provision of data with a release time; determination of the release time by the playback device; determination of the current time; comparison of current and release times; prevention of playing or use of the data if the release time is not yet reached. The invention also relates to a corresponding storage medium, playback device or drive and a business model based on the method.