Rescuing a hard drive with ddrescue After following a few forums, I was able to rescue my hard drive with ddrescue. It took almost 24 hours, to rescue my files into a .dmg file. When it was completed I double clicked on the dmg file, and I get no mountable file system. 

Can anyone help, my first born pictures are on this hard disk, and I would truly be quite upset if I can not retrieve them.
Try to manually mount it:


Open Disk Utility.app
Click File > Open Disk Image
Select the .dmg file.


This should allow you to mount/open the dmg file and install its contents.