First is Music, video,games & other media.
Second: Ringtone & notification.
Usually if I'm in class, I would press the volume down button until I'm at vibration mode. Then sometimes when I got bored in class and start playing with my phone, the volume will be very loud when i forgot to turn off the sound for games when i was looking at some youtube video or playing some games.
This is really annoying. What's the point of changing to silent mode when there is still volume at the games or video? I know iphone have the toggle for silent mode and that is seriously way useful than this.