Patent ID: 8826442

Claim:
A non-transitory computer-readable medium comprising computer-executable instructions which, when executed by a processing device, cause the processing device to perform a method for decoding received media content, for playback in a predetermined media format, the method comprising: receiving a media content file at a media playback decoder, the media content file having a data format comprising a user data field and a content field and including representative data of a trace message in the content field; and rendering in the predetermined media format the trace message from the representative data included in the received media content file, including identifying the media playback decoder as a traced media playback decoder as the trace message is correctly rendered in the predetermined media format during playback of the media content file, wherein the representative data of the trace message comprises a font file included in the content field of the media content, wherein the font file comprises a collection of sound patterns, and where each sound pattern corresponds to a text fragment, wherein the method further comprises generating the trace message using the font file.