Rock:
Anything by dEUS (no, I dont have the key locked, thats the only way to write it), sadly very compressed masterings lately.
http://deus.be/Rain, Tree, Crow, Rain, Tree, Crow
not unknown, but too easily forgotten: Colosseum: Live!
Jazz:
Juergen Friedrich, Pollock
Fresu, Galliano, Lundgren: Mare Nostrum
Roessler, Vogt, Vitous, Between the Times
and another forgotten one: Weather Report, Sweetnighter
Strange bedfellows from both worlds (not everyones cup of tea, fantastic projects for those who do like it):
Jack Bruce with hr-Bigband, Live at 37th Deutsches Jazzfestival
Hiram Bullock with WDR Bigband, Plays the Music of Jimi Hendrix
Undefinable:
Hadouk Trio, Baldamore (theres a recent live thread on Hadouk with many links to music, check it out)
These are some I thought of instantly, Ill just cut it short here without further pondering, there are of course so many more
Enjoy!
Karel