Did you set any password protection on the drive? If yes, and if it was with the WD Utilities, you can try installing the applications on your computer so you can unlock the drive.
If no password was set on the drive, try testing the drive on a different computer with a different OS.
Also make sure that you have the latest drivers updates for the USB ports on the computer.
I have tried it on another OX with no success unfortunately, and all drivers are up to date. On the Mac, I get the error message “The disk you inserted was not readable by this computer”. I would love to be able to discern if any data is retrievable at all. I am willing to spend some money to recover the data, but I am starting to get the feeling it is not recoverable. Is there a utility I can run or something to go sector by sector to see if it can grab data or something?