History of Metadata management in Audio Files

<p>The starting point for adding metadata to a track on a cd is the CDDB data but the source of that data has been something of a lottery. While the original FreeDB is no longer available, it had been copied via various forks and <a href="https://gracenote.com/">a commercial branch</a>, and while there is a more direct path to <a href="https://gnudb.org">gnuDG</a>, the alternate <a href="https://musicbrainz.org/">MusicBrainz</a> is a much better alternative. The major change is that this iteration goes a lot further than simply providing disk and track metadata for the cddb. It provides a much more complete set of metadata but the <a href="https://libcddb.sourceforge.net/tutorial.html">cddb set</a> is still rather restricted although some of it can be included in the extended data field as long as it is restricted to 256 characters.</p>