Folders retrieved but they are empty

Hi everyone,

I backed up my MacBook with the WD Smartware. The folders saved onto the portable hard drive are empty when I retireve them but the hard drive indicates that there is 63GB of “additional data” that I cannot access. Does anyone have a suggestion of what might be going on? I really don’t know what I’ve done wrong. The data I want to retrieve is important to me.

Cheers