Yesterday my hard drive died, it had a wallet in 30K DGB, I did not make a backup like a fool, if in the future DGB will have a price of 10 bucks, I will cry.
You will probably be able to get somebody to recover the files if it is worth it to you. Also, it is not really that hard to do it yourself:
https://www.youtube.com/watch?v=Zcr0ah8hjAkA good instruction, but I think it's better to turn to professionals in solving this issue. Sometimes it helps to replace the controller and the HDD comes to life. You must make a backup of the data.