As far as concert DVDs, my go-to ones are Tori Amos's Welcome to Sunny Florida, Guster's Guster On Ice: Live From Portland Maine, Rodrigo y Gabriela's Live in Japan, Björk's Vespertine Live at Royal Opera House, and Green Day's Bullet in a Bible. On Blu-ray, the only one I really love so far is Regina Spektor's Live in London, for obvious reasons. I hope a lot more artists start releasing concert Blu-rays.