Yesterday I noticed that I hear 2 new "bip" sound and that the led on the camera is steady. I figured that something is wrong with the sd card so I looked into the recordings and found that most of them are dated to 2015 and some from 2018. When I tried to format the card on the camera, it didn't change a thing and all recordings remain. I then took the card from the camera and inserted it in my laptop. Still was unable to format. Does anyone have experienced this and have a work around or does this mean the card is defective and need a new one ?