Youtube guide & demo:First time to start Karaoke programhttp://www.youtube.com/watch?v=3Zf3sJJF9YYNormal Using Karaoke programhttp://www.youtube.com/watch?v=raDxzh8ueiwPlay song, input MST/Key Codehttp://www.youtube.com/watch?v=57vJlNY-FKE Hi-End Professional Karaoke Player, with high quality sound like…