This is the handbook page for the 6.x version of Discogs.
The module creates a new content (node) type, called "Discography." That content type has fields for artist, label, catalog number, format, country, date, and album credits. In addition, it can contain multiple tracks (which reside in their own database table in a many-to-one relationship). Tracks have fields for position, title, artist, duration, notes, and lyrics.
In addition to creating this content type, this module also can pull in discography data from www.discogs.com. You can search for artist, album, or label data, returning a checklist of albums, which can then be imported into Drupal as discography nodes.