Only able to use 8gigs of my 32gig micro card

When I try to add additional files, the message says. "the file xxxxx.xxx could not be copied. It may not exist or is in use by another program.

In “My Computer”, I can only see the maximum size of the internal and external Fuze drives. There are no "properties’ on a right click for the Fuze—only for actual recognized lettered drives.

The micro card inserted into a usb adapter and put into the computer shows the same available and maximum space for the card as the Fuze does.

I even tried copying files to a new folder, and dragging them to the Fuze from there.  That produces the same error message.

I get the exact same problem when the card is inserted into a different Fuze.

If I delete files on the Fuze, I can add files until the same error message pops up.

It’s really crazy Tapeworm!!!

The only other thing I can think to tell you is that the card is a class 10.