Why after reformatting my new Lacie Porsche Design external hard drive from FAT to Mac OS Extended (Journaled) it's not empty. It says in Disk Utility - Capacity - 499.76 GB Available - 499.32 Used - 444.2 MB Number of Folders: 11 Number of Files: 58 Why... When I open it there's nothing there. Plus I reformatted it multiple times yet each time 448.2 MB of invisible stuff... What is this? How can I get rid of it?