I remember MD. It was expensive, and I know nobody who owned such a device. In this time, music was either CC or CD. And few computers got their first CD drives, read only. Digital data for computers was transported on floppy disc. Often you needed a lot of discs to do so. Then came iomega zip drives, and not few people used those. I disliked the idea of having a tape for computer data and always thought, why not using MD instead. Capacity was in the same ballpark.
Unfortunately, Sony never intended to introduce MD as the floppy disc successor, multipurpose use case. Transporting data with CD burners was a hassle, you needed to buy new writable CDs everytime. And re-writable CDs weren't too stable. With CDs you always had to be careful not to scratch them. To be fair, if CDs failed, they failed, with and without scratches.
