Hi guys. Glad I found this thread. We have just bought the Mini 0805 and are having the exact same problem. I started with a Class 10, 32GB card and formatted it in the camera before use. As soon as the card was full I got an error message. I then moved to a Class 6, 8GB card - again formatted in the camera before use - and the same has happened. I have it looped for 3 minutes but when the card is full it stops recording, goes into standby mode and will not turn off. I have to remove the camera from its mount and wait for the internal battery to die. I tried two different Class 6, 8GB cards and the same thing happened. Seriously this is not good - we leave for an overland trip in a week's time - the company we purchased it from is not answering our emails. There will be times when we want to save a clip until we return from our trip and can download to a computer but if it won't loop we will have to format the card/s and lose anything we want to keep. The only thing I haven't tried is a 1 minute loop.