having the same issue
i have a my passport for mac
- disk ulility cant see it
- it wont mount on mac osx 10.9.4 - mini mac my main machine, airbook (or windows 7)
- tried on windows and mac
- tried two different usb 3.0 cables
- mac journalled formatted
- the HD blue light goes on and it sounds like its spinning
I barely bash this hardrive around, its literally sat in the same spot for months without moving.
its just all of sudden stopped mounting!
I REALLY NEED HELP GETTING THE DATA OFF 
