The Five Second CD and DVD Destroyer
 

Japanese computer electronics company Elecom today revealed its portable CD/DVD destroyer, news of which Gizmodo has coupled with a poll. In what could be the technogeek's equivalent of a cocaine addict flushing kilos of blow down the toilet, the SCR-CD001 data destroyer will render any CD/DVD unreadable within five seconds.

that disc is still useable. If you realy want to destroy is, you should turn it around, so it scratches the data layer.