Also FWIW, from my research of concert DVDs, most DVD video disks of concerts out today are stereo audio, not 5.1 surround. Check the label on the back of the DVD. If it doesn't have any indication of Surround Sound...such as the small box outline with the 5 squares indicating room speaker positions, it is probably only stereo sound.
Different people enjoy audio differently, but I personally was disappointed by the lack of 5.1 audio on DVD Video concert disks.
And, you may also find some current and popular artists who have released 'DualDisc' versions of their audio CDs. These are disks that on one side have the original stereo recording, but on the other side, contain an 'enhanced stereo' audio, 5.1 surround, video footage, or documentaries, etc.
http://www.dualdisc.com has more info in their FAQ section.
One last thing, watch out on those Dual Disc releases, some have remixed the audio and have done things like added instruments, etc to the 'enhanced' side. I purchased the DualDisc of Bon Jovi's 'Slippery When Wet' (I'm a victim of young adulthood in the '80s) and it was remixed to sound much different than the original. I was completely disappointed with that particular disc.
-Tom