Premise: The Never-Before-Released Masters is 1987 compilation album containing unreleased recordings recorded by Motown girl-group The Supremes from 1961 to 1969. It was the second CD release of unreleased recordings by The Supremes, the first being disc two of the 2 disc "25th Anniversary" compilation. Several other unreleased tracks appeared on earlier various artists compilations.
Hypothesis: It was the second and final CD release of unreleased recordings by The Supremes, the first being disc two of the 2 disc "25th Anniversary" compilation.