Can't Format My External HD with my MacBook Pro

So my HD won't mount it shows up in Disk Utility but not Finder. In Disk Ultity, I have tried verifying, restoring, parition, and erase and none of them work. I keep getting error messages. When I try and erase it, it says "Could not mount disk1s1(Name of the parition that somehow ended up on it) with name(null) after erase" regardless of whether the format is MS-DOT or any Mac Extended option. When I try to repair "could not read boot block, volume repair complete, Updating boot support partitions for the volumes as required, ERROR: Disk Utility can't repair this disk, restore and back up."  But it won't allow me to do anything else so am I just screwed with this burnt out hard drive?  Any help would be great.

Have you connected that drive to another computer and if you have can you do anything with it on the other computer. If not then the drive has failed.

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