This is not new. I remember back in early 00’s my buddy bought hundreds of 512mb mp3 players in China for local resale and only accidentally figured out that they were 64mb or so. The most interesting part was that they played songs, but different ones than those listed in the catalogue! That was one in a million chance to notice. When he went back to the shop, the seller already started packing his boxes. Luckily he was with a guy who knew a thing or two about negotiations so they got their money back eventually.