This rather anonymous California label had an eclectic discography that's particularly difficult to follow thanx to the fact that they never had a cat# system of their own. Instead they relied solely on their distibutor's, Enigma (see also Metal Blade), who's system in turn is notoriously messy, with little regard to continuity. It's possible that some releases are missing in this list, but most likely those would be among the later CD-only releases.
A few titles had additional pressings made in Holland, but still carrying the Medusa logo.