I've had my MBP since november and it has read my external hard drive just fine. Today i tried plugging it in and i guess it wont read it. I checked in disk utility and it shows up there, but when i verify it, it says that i need to run the repair disk and try again. After i ran the repair disk, it said that i had to back up my files and erase everything and format it. Does this mean that my external hd is bad or im losing everything that's on it now or is there a way i can recover everything?