У вашего броузера проблема в совместимости с HTML5
Just a quick review of this nice 4K camcorder.
I discuss how to turn it on, the 4K settings, and how the files on the SD card are organized.
The camcorder does not have internal memory for recordings, and it doesn't come with a SD card. For full resolution and video quality, a UHS Speed Class 3 SD card is needed. It has a U3 mark on it.
Speed Class and the UHS Speed Class are two different speed classes. The speed class doesn't matter for this camera, it really needs the UHS Speed Class of 3 (Important to know!).
The camera can utilize Class 10 cards, but not with the 4K resolution. But it is able to write some video on it.