Unusual types of gramophone records vinyl colors became too high, but the different colored labels were continued, at least for popular music (black) and classical (red, as in "Red Seal"). In October 1945, RCA Victor put on the market its first "non-breakable" phonograph records. Made of a ruby-red, translucent vinyl resin plastic, they cost twice as much ($2 per disc) as the 12-inch Victor Red Seal. In the 1960s, a distinction was made in label colors of promotional copies of 45 RPM records as well, with pop music being issued on yellow labels and country on light green. In the 1970s, such gimmicks started to
Unusual types of gramophone records the album "Rings Around The World" as a 3-record set on Epic Records. Sides 1, 2 and 4 played normally. Side 3 played from the inside out and side 5 was on a 7-inch single. The side consisted of one recorded groove in the center of the record and was a perfectly timed loop of the music of a non-album song called "All the Shit U Do." Canada's Legion Of Green Men took the art further creating several records and remixes containing what they called "Eternal Opuscules", rhythmic tunes and songs which would play seamlessly to a recorded locked groove