I still stand by my selections from 6 years ago:
Fleetwood Mac - The Dance
Eagles - Hell Freezes Over & Farewell
Nirvana - Unplugged
And even though it is not a concert, I will beat a dead horse again with the movie The Commitments. (Are you sick of me mentioning this over and over?) LOL
Honourable Mention: AC/DC - Live at Donington. Audio is not quite up to snuff with the rest of this group, but it is a fun concert, regardless.
Epic 80/600 + M3's + Custom Finish Algonquin V3's