Patent ID: 8438645

Claim:
A system for allowing playback of a digital media file, the system comprising: a consumer electronics (CE) device comprising a secure clock that cannot be adjusted by a user of the CE device, the secure clock configured for synchronizing to a trusted time provided by a trusted time authority server, the CE device configured for entering, in response to the secure clock not being synchronized to the trusted time but previously being synchronized to the trusted time, a grace period mode, the CE device further configured for maintaining, until the secure clock is re-synchronized to the trusted time, the grace period mode, the CE device further configured for not allowing playback of the digital media file and for not entering the grace period mode in response to the CE device being in an unset mode, wherein the unset mode indicates that the secure clock has never been synchronized to the trusted time provided by the trusted time authority server; a license comprising a grace period, the license disposed upon the CE device and associated with the digital media file; the CE device further configured for allowing, in response to the entering and the maintaining the grace period mode, the playback of the digital media file until the secure clock is re-synchronized to the trusted time or until the grace period expires.