Can't transfer movie from my laptop!

I just bought a My Passport Essentia SE (1TB). At the beginning I have successfully transfer some movie(I think there is around 300gb) but after that I fail to transfer any movie, video from my laptop(Window 7). It says I still have 640gb free to use, but everytime when I want to transfer any movie, it will stuck at the half way. What is going wrong? I had tried format my external hard disk but yet I still having this problem after I had transfer around 300gb movie.

Perhaps is not the hard drive…have you try with another computer? 

Can you transfer the same movie to other drives?

I got the same problem!! When i try to transfer the file, half the way it stops and then you hear a little ticking out of the drive?