"Vol. 4 (2009 Remaster)" is a remastered edition of Black Sabbath's groundbreaking fourth studio album, originally released in 1972 and now available on CD from Sanctuary. This iconic record marks a pivotal moment in heavy metal history, featuring classic tracks like "Supernaut," "Snowblind," and "Changes." The 2009 remaster brings new clarity and depth to the original recordings, allowing fans to experience the full power of Black Sabbath?s legendary sound as never before. Sanctuary Records, known for its dedication to preserving rock heritage, ensures high-quality releases that honor both artists and listeners alike. Black Sabbath are widely regarded as pioneers of heavy metal; their influence spans generations with over 70 million records sold worldwide and induction into the Rock & Roll Hall of Fame.