I have a Samsung HMX10C digital video camera. I bought 2 aftermarket batteries and a spare charger off of Ebay (I have done the same before for my digital point and shoot cameras) and I charged them up and put them in the camera and it comes on fine and shows the battery life. Then it puts up a message that says "check the authenticity of battery" and then it turns back off. Does anyone know of a work-around for this, or I am just SOL... I did get a spare charger that has a cigarete lighter plug, so I could recharge in the boat... But I was hoping for a spare so I could just swap batteries and keep shooting.... Thanks