Mojave Corrupting Floppy Disks?

[1madman1]

Anyone encounter an issue with Mojave automatically corrupting floppy disks as it tries to mount or is it just something with my install? I know they used to work fine, but it's been at least a couple months since I last tried on a system with Mojave. Whatever it's doing, it completely destroys the file system (FAT12).

I still use floppies on a semi-regular basis when transferring information to and from older systems that don't like USB storage, and floppies can be quicker to deal with than CDRWs for small files. I usually use a High Sierra system for working with older media - High Sierra is also the last version of OSX that doesn't need you to use Terminal for managing CDRW/DVDRW discs.

 

[chscag]

I can't test with Mojave since I have upgraded to Catalina. However, no problem with reading a FAT-12 3.5" low density floppy disk with a game program on it.

I'm using a Sony MPF88E-UA 2X USB floppy drive.

Are these new floppy disks or ones that you've used over and over? Also, check to see if the drive is reading both density disks the same. (720K and 1.44MB). And, you might try cleaning the drive with some compressed air.

I don't believe Mojave has anything to do with the problem you're having. Sounds more like a bad drive or floppies.

 

[1madman1]

I don't believe Mojave has anything to do with the problem you're having. Sounds more like a bad drive or floppies.

The Mitsumi USB floppy drive works fine on my High Sierra system, and the disks themselves are okay after a reformat but corrupt again as soon as the Mojave system sees them.

Must be something to do with my install then, I can't imagine an up to date Catalina install would behave any different.