hello. i have family visiting and they have a Sony handycam with hard drive. since they need to free up space, i offered to download the video's on to my Mac. i am a total n00b when it comes to iMovie! i was going to try and piece together all the cips via iMovie, but it won't recognize it?! it's in an mpeg, which i thought would be the format it should be in. advice? thoughts?