I have a Western Digital HDD (1 TB, SATA / 32 MB, WD10EADS, 3.5"). A power surge destroyed the My Book power supply system that came with the drive. The drive still works, and is in tact. I have removed the drive from the My Book casing. This is the drive that I have used with my MacBook Pro for years as a data storage and back up. It is formatted in Mac OS Journaled. I have purchased an Insignia HDD docking station. The drive turns on, spins, and recognizes the drive. My MacBook Pro will recognize the drive but it gives me a dialogue box saying, "The disk you inserted was not readable by this computer." It gives me the options to Initialize..., Ignore, or Eject. I even opened up Disk Utility, and the drive shows up, but it says that the file format is not supported. Again, I have used this for years with this same computer. Can anyone help me trouble shoot this problem? Thanks!