The History Of Unheard Music - S/T cassette
Back when Staalplaat was called Staaltape they only released cassettes for a few years. This great, under-rated US band put out their debut on the label. Later on they released the Chapter One EP (don't know what label) and the highly recommended Drop It album (on RRR), both currently available over at Mutantsounds.
60 minute tape, limited edition of 250, from 1984. Many otherwise unreleased tracks and earlier versions of songs from the records.