iTunes
打开星级评价: You can assign a rating to a song, album, video, podcast, or other item to indicate how much you like it. You can turn on this option to specify the rating with a half-star. Click just beside a point or a star to assign an intermediate notation (1/2).
添加曲目编号: By default, while importing the songs in iTunes, the name of the created file starts with the track number. You can use this option to display or not display the track number in the name of created files while importing.