... I'm *pretty sure* a Mac should automatically spit out all mounted floppies when you select the "shut down" menu item. (This in order to prevent the machine from immediately rebooting off whatever disk is present *and* avoid the problem of having a disk stuck in the machine's drive.) Again, I'd have to set it up to be sure but I'm pretty sure my 512k ejects disks when shutting down the OS regardless of whether I've booted from the internal or an external drive. (I'm sure someone here has a 128k or 512k-no-e set up so they can likewise tell you definitively.)