He says this "If I get a video camera and place it in a room and turn it on and lock the door, then come back the next day there will be footage on the tape of the room yet no human observer was present. You seem to be saying that nothing exists outside of subjective experience (consciousness). So how do you explain this? It’s clear that an objective material world exists outside of consciousness. The videotape experiment easily demonstrates this".
A clear refutation is found here as I quote from physicist Andre Linde
"A recording device cannot play the role of an observer, because who will read what is written on this recording device? In order for us to see that something happens, and say to one another that something happens, you need to have a universe, you need to have a recording device, and you need to have us. It's not enough for the information to be stored somewhere, completely inaccessible to anybody. It's necessary for somebody to look at it. You need an observer who looks at the universe. In the absence of observers, our universe is dead".