ok I've read 1074838 threads about harddrive failure. mine is for a Mac cannot be detected in disk utility etc but can be seen on a PC as "working properly" but when prompted has an I/O error. two months of my film and much more is on this and I'm wondering if the date is recoverable. I don't hear clicking or anything, I also had this problem before and replaced the cord but now it's not working with a brand new one that is same length. I dropped it, but it was working fine for a minute and then I was dumb enough to try and transfer like 500 gigs when my whole Mac started acting funny and now the HARDDRIVE is not working at all. it's been plugged in forever, the led light is blinking slowly, I'm not sure if the data is safe. HELP. thanks for patience with another harddrive thread.