physics of phonons http://www.amazon.co.jp/The-Physics-Phonons-G-P-Srivastava/dp/0852741537/ref=sr_1_2?ie=UTF8&qid=1359636054&sr=8-2 Condensed matter physics http://www.amazon.co.jp/Condensed-Matter-Physics-Michael-Marder/dp/0470617985

HDDを消す DBAN http://www.dban.org/