The better bet was MO (Magneto-Optical) which used the same underlying technology but has a disk standard that wasn't proprietary to Sony. MO was big in Japan (

The better bet was MO (Magneto-Optical) which used the same underlying technology but has a disk standard that wasn't proprietary to Sony. MO was big in Japan (bigger than Zip disk) but never seemed to get much traction in the west. NeXT used the 5.25" version of MO as the main storage for their machines, but it was the later 3.5" version that was more popular. MO is the bottom-center disk in this photo https://kalleboo.com/linked/90s-disk-formats.jpeg https://kalleboo.com/linked/90s-disk-formats.jpeg