Writing to disk from other software

[dleggles]

I just installed my SCP and it seems to be working.  I can run the SuperCard Professional software and the disk utilities seem to work as expected.  The 5.25" disk spins happily and the SCP lights flash.  So now I'd like to read and write to the disk.  I'm running Windows 10.  The disk doesn't show up in File Explorer or any other application I run.  What am I missing?