Methods and apparatus to monitor media

A system to monitor media, the system comprising:

• a media analyzer to perform a first mapping of a first media identifier and a first timestamp to a second media identifier in a look-up table, the first media identifier and the first timestamp based on media obtained from a content publisher, the first media identifier to identify the media, the second media identifier from the content publisher;
• and
• a media creditor to:
• determine a third media identifier and a second timestamp based on media monitoring information obtained from the content publisher, the media monitoring information obtained from the content publisher in response to an access of the media by a media device, the third media identifier to identify the media accessed by the media device;
• perform a second mapping of the third media identifier and the second timestamp to the first media identifier and the first timestamp in the look-up table;
• credit access of the media to the media device based on the second mapping;
• and
• generate a media crediting report based on the crediting.

An apparatus to monitor media, the apparatus comprising:

• means for determining a first media identifier and a first timestamp based on a portion of media obtained from a content publisher;
• means for determining a second media identifier of the portion of the media, the second media identifier from the content publisher;
• means for mapping the second media identifier to the first media identifier and the first timestamp;
• and
• means for transmitting the mapping to a look-up table, the look-up table to be used to map a third media identifier and a second timestamp to the first media identifier and the first timestamp to identify the portion of the media accessed by a media device, the third media identifier and the second timestamp obtained from the content publisher in response to the portion of the media having been accessed by the media device.

A system to monitor media, the system comprising:

• a media analyzer to:
• detect metadata in a portion of media obtained from a content publisher;
• extract a first signature from the portion of the media when the metadata is not detected, the first signature corresponding to a first media identifier;
• compare the first signature to a second signature;
• identify the portion of the media based on the comparison;
• and
• perform a first mapping of the first media identifier and a first timestamp to a second media identifier in a look-up table, the first media identifier and the first timestamp based on media obtained from a content publisher, the first media identifier to identify the media, the second media identifier from the content publisher;
• and
• a media creditor to:
• determine a third media identifier and a second timestamp based on media monitoring information obtained from the content publisher, the third media identifier to identify the media accessed by a media device;
• perform a second mapping of the third media identifier and the second timestamp to the first media identifier and the first timestamp in the look-up table;
• credit access of the media to the media device based on the second mapping;
• and
• generate a media crediting report based on the crediting.

An apparatus to monitor media, the apparatus comprising:

• means for determining a first media identifier and a first timestamp based on a portion of media obtained from a content publisher, the means for determining the first media identifier to:
• detect metadata in a portion of the media;
• extract a first signature from the portion of the media when the metadata is not detected;
• compare the first signature to a second signature;
• and
• identify the portion of the media based on the comparison;
• means for determining a second media identifier of the portion of the media, the second media identifier from the content publisher;
• means for mapping the second media identifier to the first media identifier and the first timestamp;
• and
• means for transmitting the mapping to a look-up table, the look-up table to be used to map a third media identifier and a second timestamp to the first media identifier and the first timestamp to identify the portion of the media accessed by a media device.