DSP - Do you mean Bootleg as in "Pirate copy of Original Material" , that's fine , I wouldn't have got half of my Pearl Jam stuff if it wasn't for bootlegs , but everyone else is talking about tracks like " Layo & Bushwakkers - Billy Jean" and the like , you may be too but I didn't read it as that.
I sometimes think they sound ok , but I never buy them cause I think the novelty factor wears off far too quickly. Using a sample or a section from another tune and making something else is cool but like someone else said those Cack V's Just as Cack tunes are pointless , go and listen to a dj do it.