I recently put the bookcases with my main console games and blueray movies to the one of two possible places. Unfortunately, while they are fine now, during the winter months the a/c unit which is positioned right across them, will blast them with hot air. The distance is about 3m. They are going to get quite warm, perhaps too much so? I don't know the exact temperature limits of optical discs, but no matter what it can't be that great for them, right? The one thing I can do is place all those games and movies on the bookcases I have for my books. Books should handle the heat better....right?