16 MB 2 min 43 sec "Dark Swirly Thing". One of the reasons I want to upgrade camera and software is sound issues. Right now it's basically hit or miss when capturing sound and video for me. It's ok, almost like first learning how to shoot black and white photo film- lots of personal alchemy. The drawback is relearning what's already known. I'm saving most of my footage, not only this but others. If I don't save the footage, I usually back up the iMovie 4 project or the entire DV file.