title: Android default media player
body: <p>I want to know how a default media player works.Like how it scans all songs in sd card,how it displays them,so overall entire working on default media player.<br>
  I want this information so that I can compare it with my custom media player and check how fast my media player is working as compared to default one.I have tried searching internet but was not able to find some relevant information related to this.</p>