Best backing tracks

[Jordan Riehm]

I'd like to find some really good backing tracks, preferably made by real musicians. I'm not a fan of the band in a box stuff, cause when you go to play backup the lead is not playing the actual tune, and often the chords are not correct-fbbt and grass trax : P in not a fan if those.
My favorites so far are from the American fiddle method cd.
Suggestions?

[Tobin]

Flatpick Apprentice has some good ones.

http://flatpickapprentice.blogspot.co.uk/