At first when I walking around and watching tapes I thought the sounds were really effective and creepy to the point I was staring at the door and watching the screen at the same time. Then I was just wandering around trying to figure out if there was anything else to do I realised it was just randomly playing and the uneasy feeling went away. I think turn the rate of the sounds down a bit and playing them after certain tapes being watched would go a long way. All to say at first this was an excellent example of effective minimalistic horror spookage.