Hi everyone, The family is in tears as months of baby videos appear to be unaccessible on our external hard drive - please help! It's a Western Digital 2tb external HD connected to our iMac via USB. Although we've had it 6 months we've hardly used it until a week ago when I copied about 200gb video files over to it. I deleted the files off the iMac to give us space to carry on working. At the same time I thought I'd try Time Machine to back up what was on the iMac - after all, we don't want to lose data (!!). Today, one week later, I connected the HD and got the message 'Disk cannot be read by this computer' with three options - 'Initialise', 'Ignore', 'Eject'. The latter two do nothing but the first takes me to Utilities where I'm encouraged to try fixing the disc or (gasp) format it. Interestingly, the 'repair' option along with some others is greyed out. The HD does not appear in Finder now, but it is listed in Utilities so I guess at some level the iMac is seeing it. Any ideas? Honestly my wife is very distressed and I need to find some way of getting this data back! Many thanks.