Hi all, JVC Everio gzmg 630 upload to new iMac just isn't plain sailing, iMovie doesn't acknowledge all the time, thought I got somewhere today, compressed and uploaded in iMovie after hours, then when relaunched iMovies earlier there was nothing in the library, very frustrated, really need to securely back up these priceless memories and just not succeeding, googled it, watched half assed variations on YouTube and no closer to the prize, one of you lovely lot please help!