This was the only album to ever achieve platinum status for an 8-track cartridge. For my younger readers this was a system initially for a car it was cassette based 3/4inch tape running at three and three quarter inches per second. This was superior to a cassette system which only ran at one and seven eights per second and the tape was half the size but like the betamax and VHS battle cassette won and 8-track dissapeared but some were incorporated into hi-fi systems. So to sell 1 million of these was some achievement.