Sorry to hear that, Al...It goes without saying that you should secure any back up that you can..sorry that these drives ARE your backup... Any other drives around you can use? Reason I say is that I had several WD external drives and they all had very short lifetimes. Thankfully, I got them at Costco, so they went right back...but that doesn't help when you're in the midst of a possible failure, as this seems to be. cat On Mar 22, 2012, at 5:47 PM, Al Grappone wrote: > I have 2 that I use for backup. this morning neither one shows up on my desktop. I have restarted computer with same results. Odd that they both quit at the same time. > _______________________________________________ > X4U mailing list > X4U at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/x4u