Hello easygeorge,
1. There isn't one specific brand which is best for a shooting video, but it is important that one uses large capacity SD cards rated SD Speed Class 6 or higher. This will ensure you have both the capacity and speed to capture video.
2. We shy away from recommending cards with adapters because the adapters can add thickness and may become lodged in the camera. Therefore only "full size" SD cards are recommended.
3. The camera stops recording automatically after hitting a 4GB limit, and starts a new clip. This is normal, and if you are shooting HD video, 1920 x 1080, this limit can be reached quickly.
4. To format the card go into the Menu> Setup Menu 1 (Wrench with dot)> Format Card> OK> OK
This will erase all the data on the card, so please be sure there is nothing you need to keep still on the card.
5. We do not recommend switching cards between devices unless you properly format the card in the camera first as this will clear the card and format it for use in the camera.
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