Hi, why not you try http://www.diskemergency.com it’s also one of the best data recovery service provider among the all. It has many ways to recover our data from any disk. Hope this will work out...

Hi, have you tried http://www.diskemergency.com it provides many ways to recover data from disk. You can submit your problem online and get solution in short time. Hope this will help you.
Good luck!

I think that your disk is probably damaged …cannot guess any other reason for failure.There may be some problem in the controllers or can be another thing.The best way is to get a professional team...