Jim, Is the firmware for a WD drive when used in *any* external firewire case? Or is it for a Western Digital external firewire case? Any info appreciated - I just ordered a WD 1800JB HD and an external firewire case (not WD) for it. Anyone interested in external cases might want to have a look here: <http://www.wiebetech.com/products.html> The UltraGB is bus powered (!). Rick > The firmware, as I understand it, is for a WD external firewire > drive when used with versions of 10.2. Apparently they have experienced > difficulty, as I have, getting the drives to mount and show on the > desktop. I guess if yours work without it, just smile and be happy. >> Here is the URL -- >> <http://support.wdc.com/download/external/wdfwonlymac.hqx>