Sony's logic was... missing.

There was a SCSI drive for data storage in 1995, but it required special Data discs instead of standard audio ones: https://www.minidisc.wiki/equipment/sony/misc/mdh-10 (disclaimer, I run this site)

They finally did allow mass storage usage with Hi-MD as the format was dying out, but too little too late.

There's now a FUSE driver PoC for standard MD devices that have USB ports (NetMD) thanks to reverse engineering.