iTunes
星半分単位でのレート付けを可能にする: 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).
トラック番号を追加: 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.