==[[The Definitive NIN - Quiet Tracks]]==
A compilation album featuring 19 (now 27) of NIN's quieter songs and instrumentals. A good way to get acquainted with a side of the band many people are unfamiliar with. This is the third release in a three-piece "Best Of" collection.
==[[The Definitive NIN - Heavy Tracks]]==
A compilation album featuring 23 of NIN's harder and heavier songs. This fourth release was not made available until several years after the first three parts. It was released via the nin:access iPhone app and the "Listen" section of nin.com.