I'd have to search far and wide for a working 3.5" disk in this day and age!
swapped the drives, and it still isn't working.
that's not a good sign.
the best I could do is put in a "uh-oh, this appears to be a DMF disk and your drive is limited to 1.44! Go image it on a better drive, please" message
Just manually parse the BPB and see if windows is lying to your face about what the BPB says.
There's no MediaType for a 1.68mb 3.5" disk, because you can't expect Miccrosoft to properly support weird floppy disk formats created by small companies like *lemme check who made DMF* oh yes, Microsoft.