WD My Book Essential External Hard Drive 750GB problem

i have a problem with my external hard drive, i can’t opet it or format… i’ve uploaded some pictures so you all can see…

so somebody pls help  :)

sorry for my bad english.

thanks in advance  :)

on the picture the external drive is named disk 1 and it shows 30 gb of healthy disk space, and 660 GB of unallocated :S

Try writing zeros with DLG.