Help with concert dvds???

i been trying to find a dvd with oldies songs or with different bands playing in concert or live..but i dont know where to look for them. I tried looking for them online but i cant seem to find any dvd like this and i know i seen it on tv before i just cant remember the name of the dvd.Does anyone know where i can look for dvds but in convcert of bands? Like Ac/Dc..Creed...CCR??Help please. i want to buy a dvd with live concerts for my dad cuz he is into rock music