My Book Essential 2TB stopped working

Suddenly my My Book Essential 2TB has stopped working.

I watched a movie last night and today when my daughter wants to watch a cartoon it seems to be broken. I get the message that the drive is not accessible and that the file or folder is damaged. After that it wants to format.

I really hope I can salvage it somehow without formatting. Can anyone help?

Nevermind!

I solved the problem using EASUS Partition Master.

Thank you for the information, this will be helpfull in the future for people that happen to be in the same situation.