This is some seriously cool technology. You can choose from a bunch of cameras, switch any time (seamlessly if you have fast internet and a decent computer), and pan around to any angle.
Muse - 08 - Citizen Erased | MATIvision.tv
Anthrax - Heavy TO
They have a bunch of stuff listed (looks like they filmed all of Heavy TO and some other stuff) but most of it comes up as "Premium Only" for me at the moment.
Artists | MATIvision.tv
That is Really awesome.