Miller and Kreisel (M&K) made some direct to disc ones that were good. I mostly have made my own however, direct to digital using three spaced omnidirectional mics and a custom mixer - basically the same technique that Mercury used in it's "Living Presence" recordings from the 50s & 60s. There's a particularly nice and huge old church near where I live that has ideal acoustics. I did a commercial CD there.