Disk utility keeps failing to repair my external hard drive?

My disk was working completely fine about two weeks ago, but today when I plugged it in to back up it didn't show on my finder. When I checked disc utility, it did though but when I clicked "verify", it said I had to "repair" it. So I tried, but it didn't work.
What should I do? It's obviously recognized by the computer, just not usable.

greenteafrappucinos wrote:
, it said I had to "repair" it. So I tried, but it didn't work.
If there was a message in red that said the HDD could not be repaired, then the disk should be replaced.
Ciao.

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Francine Schwieder Southern Cal

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Disk utility keeps failing to repair my external hard drive?

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