Destroying? How so?
Do they stop working in the camera and can never be used again or they just don't work there but still work in other devices?
Do you let the camera infinitely overwrite the files or you empty the cards every day or from time to time?
What brands and capacities have you been using?
The cards don't work on anything, I have tried Windows 10, Ubuntu and even tried formatting again in the camera. They have all been Trancend cards, 16Gb, 32Gb (this was the latest casualty) and a 64Gb.
After the 1st week, I had an issue with it not liking the memory card, so I formatted it. Then a week later, same problem, but it wouldn't format. I had previously emptied the car of its contents, but had just let it continue recording, as it was always set to "Car Mode"