I have a 600GB Western Digital external drive which is probably around 3 or 4 years old. Suddenly the blue light no longer illuminates and Windows doesn't see anything attached. I've unplugged it completely whilst I do some research on the likely issues before attempting to re-connect it and grab my data before it finally keels over (assuming it hasn't already). I tried plugging it back in once and the blue light flashed a few times but not in the normal manner (half brightness and not alternating left/right with the two blue diodes). I have left it unplugged for now.
Has anyone had one of these drives appear like it's about to die like this, but still managed to grab the data off the drive before total failure?