Hi after a 3-4 days if use 32 gig card or 1-2 days if use 16gig card I have a message "Please check sd card" . So I have to press format button and format the card. I checked card at home on my PC and found that card is full so recording is NOT started again when the card is full . But I know that I do not need to reformat card all the time just insert it and forgot . Any recommendations because its too annoying to reformat all the time . thnks