there was a remix of a remix on a low EP (http://www.discogs.com/Low-owL-Remix/master/39750), and on 'shades of blue' madlib perhaps unknowingly used the jazzyfatnastees vocals from the roots' remix of "montara," but i can't think of a whole release like this so color me curious

EDIT: OH it's the Ninja Tune *Forum* :}