Back in the 70's, I was consumed by Quad vinyl and Quad 8 tracks. In 2013, my love for Quad was reborn with the production of High Fidelity Pure Audio. I am now a Rhino's Quadio enthusiast. Late to the game, I picked up the Chicago, Doobie Brothers, and Black Sabbath from eBay. Quad has never sounded this good. Well done Rhino! From their website, I have ordered Jefferson Starship, J. Geils, and Alice Cooper--which are on the way. Now, I'm foaming at the mouth for more...more...more! Yesterday, I received a notice from Rhino that Paranoid is back in stock!