There are many movies on Internet. We download and watch these. But sometimes, we fail because of some reason. In this topic, I talk about movies and movie players.
 Movie file has a form, for example "***.wmv***.mp4, ***.mkv". The name is "Kakutyousi" in Japanese. When we watch movies, it is read and make sure whether it can be loaded by a movie player or not. Movie player can't read all data. So when you see videos, check it can read the file.