Depending on the problem data restoration can be, as stated above, a couple thousand dollars. When I had a problem with my drive and I thought it needed to be sent to a data recovery company, I found companies by going to the website of the manufacturer of my drive (Western Digital) and there were several companies there that are partnered with WD and offer discounts. Many companies also offer the option to send them the drive and have them perform a free diagnostic...they won't perform any work without your permission.