How To Set the Playback Preferences in iTunes
Be sure that iTunes is open, and it is best to make the window full screen for ease of access to the menus. In order to make the window full sized, click the middle box in the top right hand corner of the iTunes interface.
Once you have the window full screen you can click on "edit" on the top of the screen toward the left. Then open up the "Preferences" menu by clicking on this option. You will see several tabs at the top of the screen that pops up. You may then choose "Playback" to set the options you desire for playing back of music and video. There are several options on this menu that are as follows: cross fade songs, sound enhancer, and sound check. In addition to these you will see several drop down menus. They are as follows: Play Movies and TV shows, Play Music Videos, Audio Language, and Subtitle Language.
