minidiscs should have been the standard CDs became. no one would have considered holding a 3.5" floppy disc gingerly by the edges and placing it into a tray to read. the case is critical.
however, the industry realized people were replacing their scratched cd's, so they'd sell 2, 3 of the same disc to the same person. Source: worked at a record store in the hight of the CD age when mini discs were all but essentially snuffed out