Problem with my book essential smartware

Hello there

I need your help guys…

Few days ago i update my book essential to versian and after i did drive erase, so my book essential was clear, after that i did back up of all my files on Macbook pro. And after to each  name of all files which  were copy on my book essential is add @. example:     Why??? 

Help me to find out how to solve this problem!!!

With Sincerely Likbez!

What did you backup with?


I back up, all files on my laptop. 

I just dont understand why all files with @???

i back up with standard program wd smartware.