Problem with format & space allocation?

Hi I am new and I have tried to set up WD My Live Book 2TB and I thought I had done ok and tried to copy my music and it said I had no space?

I copied 2 movies total 7 Gb approx .

The properties of my disk now show 512MB.

I need to know why it says uit is FAT format and only 512B.

Try reading the WebDAV FAQ: