Regarding the formatting of cards, I just erased the contents of 4 cards using the “erase all clips” command. After that, one of the cards kept giving me the error message, “Media needs to be restored.” I would restore the card and of course, there would be no clips. This happened every time I powered up the camera, and only with this one card. Finally, I just re-formatted the card, and now, everything is fine. So, even though the advice on the Vortex Media DVD is to erase clips instead of re-formatting, I think I will be re-formatting from now on.