My corner

 I have a 320 GB external hard drive where I store all my music and my pictures on. For my birthday I got a new external hard drive which takes power from the USB cable, meaning it’s more portable. I decided to copy all my music and pictures to the new small portable hard drive and then use the other for Time Machine. I have been looking forward to try Time Machine, so I was really excited. 

I plugged both of the external hard drives in my mac and started copying from the 320 GB to the one with 160 GB. After around copying 10 GB of my music I get an error saying "There is something wrong with this file. Can’t copy". I closed the alert box, but I could not close the window with the progress bar. It showed a progress bar but it was stuck with this one file. After some time I restarted the finder (you can’t close or stop the finder). When the finder returned, the large hard drive made a click sound and everything on the disk was gone…..

Now both my mac and my PC will not have anything to do with the hard drive. I have tried repair it, erase everything and partition the disk with disk utility in mac, but I keep getting a I/O disk error.

Can I return the hard drive to were I bought it?

I think I will partition the small hard drive into 2 volumes and use one volume for Time Machine and the other for music/picture storage.