The miniature discs were made at the company's studio ... “Six titles of 33.3mm/1 5/16th in diameter were recorded on mini-vinyl records by HMV's studio at Hayes, Middx on 26 January 1923 ...

Remember the mini-CD that was all rage in the 1990s ... from the 1990s and offers tracks released only on vinyl records. “Tanzaku CD Disc Guide: 8cm CD Maniacs,” a guidebook featuring reviews ...