MO Disk SONY 230MB (2 x 5-pack)

SONY MO Disk 230MB Unopened
(Set of 2, 5 disks per set, total 10 disks)

According to the instructions:
This disk can be used with 3.5-inch 230MB MO drives that comply with ISO standards.
Please format and use with your existing drive.

I kept these properly stored for a long time, thinking I might use them someday for music production equipment (samplers), computers, etc.
As they are old and have been purchased many years ago, please understand this in advance.