For concerts with video, I want the surround sound to reflect what's on the screen. Most of the time, that's going to be an audience mix. OTOH, the Ernest Ranglin Blu-Ray isn't really a concert video. It's much more intimate recording and the sound reflects that. If there's no video, however, all bets are off. I really like 2L's surround recordings that put the listener inside the Trondheimsolistene.