I have a handycam HDR-CX550 and I cannot get some of the videos off of it onto my computer. I have tried both my Mac and my PC. If I plug the camera into the TV ALL videos are visible and viewable. But when I plug the camera into the computers they don't "see" the older videos, from 2012. I have not changed my recording method so why don't these old videos show up and download on the computer? They are filling my hard drive up but I don't want to just delete them. The error message my Mac gives me is #kind+videocip&indexhint, video may contain no data or unrecognized file type. But the videos ARE there. HELP!