so i don't know much about computers, which is why i am here...anyways i have a macbook and a sony camcorder (the model # is DCR-HC21) and i have a usb cable which i tried to use to upload video but that didn't work so i bought a sony i link cable...i was under the assumption that it would work, but the cable doesnt fit into my computer...like it goes in but not all the way and i don't want to force it and break anything...please help me