Method for providing personalized, targeted advertisements during playback of media

A media player, comprising:

• a communications interface;
• a memory store containing a plurality of personalized advertisements, wherein the personalized advertisements are refreshed by receiving updates from the communications interface during intervals of connection with a network, and wherein the personalized advertisements are indexed by a plurality of characteristics, at least one of the characteristics being a creation date of the personalized advertisements;
• and
• a media playback component, stored in a non-transitory computer readable media and executable by a processor, configured to play a media content, wherein the media content is stored separately from the personalized advertisements and the media content comprises an embedded advertisement and an embedded metatag associated with the embedded advertisement, and the media playback component further configured to play one of the personalized advertisements in the memory store selected based on the characteristics of the one of the personalized advertisements instead of the embedded advertisement when the metatag associated with the embedded advertisement is encountered during playback of the media content and the media playback component determines that the embedded advertisement is outdated, wherein the media playback component is further configured to play the one of the personalized advertisements during an interval of disconnection from the network.