| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|
| SP-3711 | Styx | Cornerstone (LP, Album, Ltd, S/Edition, Pla) | A&M Records | SP-3711 | US | 1979 |
| 3932391 | Styx | Cornerstone (LP, Album) | A&M Records | 3932391 | Netherlands | Unknown |
| UICY-77887 | Styx | Cornerstone (CD, Album, Ltd, RE, RM, SHM) | A&M Records | UICY-77887 | Japan | 2016 |
| 2220032, SP-3711 | Styx | Cornerstone (LP, Album, RP) | PGP RTB, A&M Records | 2220032, SP-3711 | Yugoslavia | 1980 |
| D20Y4006 | Styx | Cornerstone (CD, Album, RE) | A&M Records | D20Y4006 | Japan | 1989 |
Printed paper inner sleeve.
A&M logo appears twice on the label of Side 1.
The cover of this release is a gatefold cover.