Cannot mount WD Elements - blinking light

After over a year of reliable use all of a sudden I cannot mount my WD Elements 2.0TB external drive.    When I power it up I hear the hard drive spin up, but the white light flashes constantly and it will not mount.  I tried Apple’s Disk Utility as well as Data Rescue 3 but neither could see the drive.   I also tried two other USB cables and tried to mount it on 3 different Macs.   

At this point, is there any hope of data recovery?  Researched here and elsewhere and not sure what to try next.

-Lewis

You can try calling tech support to see if you can get a replacement power supply. If that doesn’t work you could try opening the case and connecting the internal hard drive directly to the computer, but doing that will void the warranty.