"Don't think decontenting is limited to just cars. Next time you're at the grocery store, stop by the freezer case and check out your favorite carton of ice cream. Most brands have quietly gone from a half-gallon (two-quart) container to 1.75 quarts--without changing the price."
I'm pretty sure I've seen the higher-end brands dropping to 1.5 quarts now. Sodas are pushing 1.25L and 1.5L containers when it used to just be purely 2L. There are a lot of four-packs in the beer aisle. A fair number of meats are being sold in fixed-sized packages, invariably less than one pound per package, rather than being sold by the pound.
At least it's clear enough if you look for it. In the SSD case, it sounds like they're making important alterations to things that aren't discussed in the specs. Of course, you shouldn't buy something depending on anything that isn't listed in the specs, but if all the manufacturers have the same crappy set of incomplete specs, you don't have a lot of choice.