Every movie has default, or preferred, settings for playback rate and volume.
These settings are stored with the movie in its movie file. The Movie Toolbox provides functions that allow your application to manipulate these default settings. You can use the GetMoviePreferredRate and SetMoviePreferredRate functions to work with a movie's default playback rate. You can use the GetMoviePreferredVolume and SetMoviePreferredVolume functions to work with the default sound volume of a movie. The Movie Toolbox also provides a number of functions that allow you to change other settings when you play a movie.