Dr. Joel M. Hoffman wrote:
"Many thanks for your email. We are sorry thqat you are
dissapointed. the Sam`s Club version of our media is NOT the same as
the general brand found in Pro dealers and is NOT covered in the


This is very common with mega-outlets. Walmart, Costco (I think),
Home Depot, etc., all commission products to their own lower
specifications, and then sell those products cheaper than their
competitors. At Home Depot, at least, these products usually
(always?) have a different product number, with an "a" at the end, for
example.

-Joel

That's the case for other kinds of products. A suit or dress from a top-name designer may look
similar in a discount store and a higher-cost store, but there are differences in the material and
the quality of manufacture. Caveat emptor.