[Shakesbeer]

The theory that was posed on both videos was that there was magnetic or energetic interference which I would suspect has something to do with the erratic tape behavior. Seeing how the force that causes the distortion is unknown, and there isn't a way to test it, it's kind of hard to judge the recording by conventional methods. Even if you could reproduce that effect, that's still not saying that's how it was done, and that still doesn't explain how he'd be able to hoax the creature itself.