I am using the newest MacBook Air, Mac OS X 10.7.3. My external drive is a Samsung M2 Portable 3 Media, 500GB. I might have accidentally disconnected the hard drive without ejecting it first. Now when I run disk utility and click Repair Disk it says: "Disk utility can't repair this disk. Back up as many of your files as possible, reformat the disk, and restore you backed-up files." Buying disk repair software like DiskWarrior isn't an option for me. Is there anything else I can do to repair the hard drive or recover the data? I know that there is a 'restore disk' option, but it would erase everything in the destination drive. Is there any way to avoid this? Please help!! I'm really freaking out. Thank you!!