THis message just appeared 2 weeks ago and (I was SHOCKED because i thought the hardrive just Quit and all my important Files with it), and my simple tech works fine all year long I had it for 3 years now and very dependable its just like my main hardrive because I put everything in there. Now this Happens and now Im trying to save the contents to another hardrive little by little, but this message keep on popping up and I have to restar tthe computer turn off the hardrive wait for 2-5 hours then do the copying agin but in the middle of the ciopying process the message will pop up again and it means its not copying. so its so hard. Is the Simpletech Hardrive about to quit. I have another 2 external-hardrives but their working fine only this simple tech has an issue like this.
Please Help Please please

Computers & Internet - SimpleTech - (STI-USB235/400) 400 GB Hard Drive