Metallica, the heavy metal band that has inspired rapid fans for more than two decades, has given their most loyal followers something new to sink their teeth into. Every video the band ever made -- sometimes grudgingly, as they rebelled at first against the emergence of the MTV era -- has been collected into one DVD with 5.1 surround sound. The release has been long anticipated for some never-before-seen footage, including the video for "Mama Said." Also on DVD for the first time is 1989's "2 of One," previously found only on VHS. Twenty-one videos make up the entire collection. Bonus materials include a trailer for "Metallica: Some Kind of Monster," the acclaimed documentary about the band.