It would be your computer drivers, not the HD or whatever, umm... i am guessing that you're using USB try updating those drivers, as for your images, they are gone...
I have a Maxtor One Touch that started to go bandit on me and corrupt digital image file etc. I tried the usual WINXP tools (diskcheck etc) but kept getting Cannot XXX due to Device I/O Error. I managed to get some files off to another drive, but I have lost thousands of images. Reformatting the drive seems to have stabilized it, in that I can now read/write, but it seems there are still problems. Incidentally, I have now had 3 Maxtors go this way; coincidence?
I am now trialing data recovery software, but keep getting the same I/O error message. My questions are:
a) What might this error be and how can I fix it?
b) What is the best app for getting images back?
They all claim wonderful things on their websites, but I'm not getting any recoverable files listed.