Methods and apparatus for metering portable media players

摘要

Example methods, apparatus, and articles of manufacture to collect metering information associated with media presented by portable and computer media presentation devices are disclosed. A disclosed example method accesses a first data structure including metering information generated by at least one of first media presentation software executed by a personal computer or second media presentation software executed by a portable media presentation device. The metering information is associated with media presented by at least one of the first or second media presentation software. At least some of the metering information is then extracted from the first data structure and stored in a second data structure. The at least some of the metering information is then communicated from the second data structure to a data collection facility.

主权项

1. A method of monitoring media presented by a portable media presentation device, comprising:
retrieving, by executing an instruction with a processor, a frame tag code from a corresponding frame of the media, the frame tag code associated with the corresponding frame of the media presented by the portable media presentation device, the frame tag code including a frame tag code value that indicates a number of times the frame of the media has been presented via the portable media presentation device; after the corresponding frame of the media has been presented, incrementing, by executing an instruction with the processor, the frame tag code value when a playback-time of the media corresponds to a frame tag code time offset value; and storing, by executing an instruction with the processor, the frame tag code, with the incremented frame tag code value, in the corresponding frame of the media.