So, yesterday I moved my wife's iPhoto library to her WD external HD so she could install Snow Leopard on her iMac. Today I get home and she meets me in the driveway telling me that her HD fell of her filing cabinet and the computer won't recognize it. I take a look at it and here's the message I get when I plug it into the computer: <Red Stop Sign w/ "!" in the middle> The disk you inserted was not readable by this computer. (Initialize...) (Ignore) (Eject) I am hesitant to click the (Initialize) button for fear of an accidental formatting which would subsequently erase our iPhoto library (ALL OF OUR PHOTOS -> 90GB of photos). Because Mac enthusiasts are the ultimate community and are very resourceful on the whole, I felt it would be most prudent to put this query to the monitors of these boards. What do I do? Thanks!