I suppose it's also possible that this gadget does alter the disc in some way that simply changes or alters the bit stream being encoded sound in a manner that some might perceive as an improvement if there is something they didn't like with what they were listening to originally.
Even if true, I can't see the technical argument that would justify calling modifying the intended encoding of the music on the disc categorically as an "improvement". It could work both ways, I would think.
Someone please explain it to me! I want to be a believer (even if not a buyer)!