I just received the Japanese CD of Beck's Hyperspace (2020) and was surprised and charmed to find it was packaged as a 7" single, with the CD mounted on a 7" cardboard disc. I was wondering what other examples there were of one format being packaged as if it were another. From my own collection, I can think of E.A.R.'s Pocket Symphony, a CD-sized vinyl disc: 21 Beggars Banquet, a promo-only complete cover of the Rolling Stones album, issued to commemorate the 21st anniversary of the label of the same name. This was a CD masquerading as a vinyl album (the disc mounted on a board inside a gatefold cover): And there's the bonus cassette that came with Numero Group's wonderful Scharpling & Wurster box set, which turned out not to be a cassette at all, but a USB pretending to be one: What have you got?