I have RAAMmat (I believe it to be the 6th incarnation) and Protecto Wrap in my hands as I type this and they are indeed not the same. Not in smell, thickness, shape, quality, more.
Why RAAM is so tar-like, I have no idea. I have no reason to suspect Rick sneaks cheap fillers in it, so I cannot comment. I've also never seen the MSDS on it.
RAAMmat's adhesive layer is clearly not on the same level of 'rubberyness' as DP or VMax. If it's sticks and stays, it's probably damping. But, then again, I've never seen damping testing on it, so we're back to anecdotes.
What is the cost involved in the proper engineering and manufacturing of a foil-backed CLD mat? And are you willing to pay for the products that invest in such a thing? Ask yourself this when you go to buy "deadener."
While you're at it, also ask yourself if a CLD mat is the optimal choice for in-car damping. After all, there are many forms of structural damping.