2.5'' Mobile HDD not beingread at all Hello. I'm desperate. I just put some gigas of video on

Question

Hello. I'm desperate. I just put some gigas of video on this removable HD , and now no computer can read it. They say USB Ide found and then reading error . No icons shown. Maybe I havn't deactived the right USB hub before unplugging, but it's strange that for this I have to throw away an expensive device (my father's, by the way) If more info are needed ask me THANK YOU