i bought this on vinyl in the 80`s,and it still stands up to this day,i also bought it on cd,now this one has a dvd concert in it,i may have to buy this again.this disc is great,no doubt sabbath fans,trouble mixes sabbath groove with up tempo metal,this is a must buy, especially with a dvd concert attached.seeing a band live always gives you a perspective you can`t get from just listening to a cd,you may find yourself getting the rest of their cd`s.