Everybody be warned, the menu system on HF-G10 will completely delete all the footage on a chip if you ever say "delete all scenes this date". They don't care what date or what scenes-- they just delete ALL the data on the chip. I hate this menu, and, there's no other way to delete pieces of video.
I've shot aproximately 100 events with this camera now. The only way to really use this camera is just download EVERYTHING off the camera as soon as you get home, back up your computer files, and just delete everything on the camera.