Sound works in emulator but not on phone
<p>I have this code</p>

<pre><code>    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        final MediaPlayer mp = MediaPlayer.create(this, R.raw.blah);

        Button Button01 = (Button)this.findViewById(R.id.Button01);
        Button01.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                mp.start();
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

    public void onClick(View v){}

    public void disclaimerBTN (View v){
        Toast.makeText(this, "FAILED:   The remote object is " +
                            "not responding to this command",Toast.LENGTH_LONG).show();
    }
</code></pre>

<p>When I use in my emulator, it works, but if I use my phone to test, it doesn't play the sound.</p>

<p>I have no reference to this code in my button.. should I?</p>
