external hard drive issue

I took a 400gb from an old Media Center PC I had to add some storage to my MacBook. I formatted it inside Windows, then reformatted it to work with my Macs. I plugged it into my iMac to get some data off of it for the MacBook. The computer froze during the transfer and after the reboot the drive won't mount. It says failure to initialize or something of that sort and will not show up. In Disk Utility I try to erase it and it gives me an error. The drive shows up and says 2.0TB (but its a 400gb) and won't let me do anything with it. In Windows, it won't show up to be reformatted either (on dual boot or the original PC it came from). Any ideas on how to get it working again?

 

Won't let me verify or repair. No dropping. Barely moved. It's a year old...if that.

 

bump...

anyone have any ideas?