https://blog.faceutil.com/2017/03/23/dvd2avi%eb%a5%bc-%ec%82%ac%ec%9a%a9%ed%95%98%ec%a7%80-%ec%95%8a%ea%b3%a0-%eb%b2%84%ec%b6%94%ec%96%bc%eb%8d%a5-%eb%aa%a8%eb%93%9c%eb%a7%8c%ec%9d%84-%ec%82%ac%ec%9a%a9%ed%95%b4%ec%84%9c-avi%eb%a1%9c/