isrc

The Music Producers Guild (MPG) in partnership with the European Broadcast Union (EBU) have now standardized a metadata field for the International Standard Recording Code (ISRC) in wav files!  This issue has been a long time overdue, but now finally gained enough traction to make it into a standard.  The ISRC can now be embedded in wav files inside the core metadata.  This means it will follow the file where ever it goes.  We also now have software that is able to add this info to your mastered wav files, so we can offer this service to clients.

Run by Nielsen, Soundscan is the official method of tracking sales of music and music video products throughout the United States and Canada.  They have been tracking sales since March of 1991. It is a common misconception that RIAA uses the Soundscan information to track sales and certify Gold and Platinum sales etc.  They do not.  On the other hand, Billboard uses the Soundscan information to create their music charts.

International Standard Recording Code permanently and uniquely identifies sound recordings.
PQ codes are the first 2 of 8 sub-channel information encoded on a 'Red Book' CD.