I'm not saying bootlegs should be played.. and that is my view, and I will always stick by that..
but if Rob Thomas knew you had the "Original Acetate" which you say he does and he knew you was djing then it sounds personnal, and you need to sort it out with him..
is your acetate an orignal or taken from hes tapes?
if its the original then you need to speak with him.. only he can answer why he gave it to the other dj before you went on. No one on here can answer for him can they?