nk said: >I don't remember whether Firewire drives are hot swappable or not. >does anyone know? They are supposed to be; as are USB devices. But I've heard so many horror stories related to doing so (blown FireWire boards, loss of data on hard drive, etc.), that just as a matter of conservative practice, I always power down before disconnecting and switching cables. There are a couple of very interesting FireWire white papers here that you may want to check out: http://www.wiebetech.com/whitepapers.php Randy B. Singer Co-Author of: The Macintosh Bible (4th, 5th and 6th editions) MACINTOSH OS X ROUTINE MAINTENANCE http://www.macattorney.com/ts.html