I got a 2011 Macbook Pro. Just about a week or two ago I was using it and then it just shut down even though I had the charger plugged in. Have another PC and the began looking around. I have done about everything that I can think off and after a while I finally found out how to boot into the Disk Utility. And well behold I need to repair my disk. I go to verify Disk It then proceeds to seay "Error: This disk needs to be repaired. Click Repair Disk." and I do. Then I get in red Letters "INVALID NODE STRUCTURE" and then "ERROR: DISK UTILITY AN'T REPAIR THIS DISK...DISK, AND RESTORE YOUR BACKED UP FILES." So from what i have found out I basically hav e the only option to open up my mac and then take out the HD and mounted to get the files. I don't really know how to go about this option so I am backing up my system to restore which is the other option a clean install. So I went out and bought a "My Passport" portable stroage 1 TB which should be more than enough right? Only have a 500GB and had only about 200 GB used. BY THE WAY I AM ONLY TRYING TO GET THE PICTURES AND VIDEOS AS IT WAS MY MAIN PURPOSE OF USAGE. IF ANY ONE KNOWS HOW TO GET THOSE OFF I WILL BE HAPPY WITH THAT EVEN IF THE MACBOOK BECOMES A BRICK. I JUST WANT THE PICTURES AND VIDEOS AS I NEVER BACKED THEM UP....SMART IDEA. So I formated the external HD with the following settings int the disk utility. For the format I use MAC OS Extedned ( Journaled) and then a GUID Partition Table. I have tried and tried but I end up getting this notice "unable to create back up *name of file*.dmg (input output error) So with this am I doing something incorrectly? I get this message after about an hour. Does this mean that the drive can't even be backed up b/c of corruption? Also time machine and all of that ain't an option as I never did that. I have my Iphone so I was able to save the pictures that were in the Photo Stream but i have a whole lot others on that HD. Basically I just have my macbook that turns on onto the grey screen and then shuts down, i can't start i safe mode either. I have that external HD 1 TB, and my windows PC. Any workable solution to this? Also if anyone could explain if the process of taking out the HD a hard one and how likely am I to damage the Mac if I open it? Or does that message mean that I can't even back up and I've lost my data? Also not sure how to use disk warrior and all that. Also i've read that I can schedule a Genius appoitment? What exaclty is that and would that be of any help to recover my data? Anything would be helpful.