Is the medium of Quran sacred

So what will be acceptable means of disposing it? For instance, sometimes you have calendars or other media with Quranic inscriptions on them. I think just burning them away is the best way of disposing them. Say for instance, a CD, damaging it or incinerating it or if you can simply erase the contents. How do you think it affects someones psyche? People find it easier or it bares less on their conscience when erasing digital data versus something more physical and permanent in nature.