I am so grateful to have found - many years ago, this wonderful site. I use my backing tracks either as a backing track in it's entirety or just drums and bass.
I use my backing tracks, I have several of them, to perform in a public setting - usually nice quiet restaurants and cafes, but the sound quality is so good it can be heavily amplified too.
I highly recommend these backing tracks to any discerning player who wants to have an authentic band sound.... and of course sound great too!