Hello, until 1996 there was with the Teac FD-505 a Combo (Dual) Floppy Disk Drive available which can handle 3,5" and 5,25". A view onto the url http://www.teac.com/DSPD/support/floppy_drives/floppy_drives.htm is showing that there were four model series existing: FD505-000, FD505-100, FD505-200 und FD505-300. And from that product lines submodels are for example FD-505-309-U, FD-505-300-U, FD-505-302-U, FD-505-318-U5. Has somebody an idea what are the differences between the models -000 to -300 and what stands behind the product nomenclature of these Teac combo drives? For example FD-505-x09-U stands for a white brezel. Available manuals and specs as well as Teacs web ressources are unfortunately not providing that information. Thank you in advance for a hint. Best Regards Michael Kreienberg