Hi, At the moment, I use a 2TB WD My Passport Studio for my Time Machine backups. However, today I received an error when trying to back up saying the disk was read only. I unplugged it and plugged it back in, but now it doesn't even mount in Finder. (It has a constant blinking white LED if that's Western Digital's way of indicating anything) I went in to Disk Utility and tried to verify the volume, but it spat out an error saying I needed to repair it. I tried that, and it came out with 'Disk Utility could not repair the disk. Back up as many as your files as possible, reformat the disk, and restore you backed up files.' I then went to erase it, but it comes up with an error saying 'Disk Erase failed with the error: Couldn't unmount disk.' I've tried on two Macs with two different cables, so I think it must be something to do with the disk. I tried to add it to the Spotlight privacy settings incase it was indexing it when trying to unmount, but it doesn't appear in Finder (only DU) so I wasn't able to. The disk, according to Disk Utility, is fine, but the volume isn't and spits out a few errors, none of which look good. Is my disk dying/dead? A couple of questions: 1) Why does DU, when repairing the disk, seem fine when you click on the actual disk, but not the volume? 2) If I need to replace it, are there actually any 2TB FW800 drives still in production? The WD one I have currently is out of stock everywhere! Thanks.