Android :: Downloaded Media File Cannot Be Played

I have an application that will record and play audio files. Some of the audio files are downloaded using simple standard http downloads using httpclient. It worked like a charm for a long time. Now all of a sudden I cannot play the files I download. It fails with this stack. I store the files on the SD Card and I experience the problem both on a handset and a USB connected device. I have checked that the downloaded file is cool on the server, and I can play it without any issues. These are the code snippets I use ( I know that recordingFile is a valid path for the file).

// inside the activity class
private void playRecording() throws IOException{
File recordingFile = new File(recordingFileName);
FileInputStream recordingInputStream = new FileInputStream(recordingFile);
audioMediaPlayer.playAudio(recordingInputStream);
}

Here is the media player code:
// inside my media player class which handles the recordings
public void playAudio(FileInputStream audioInputStream) throws IOException {
mediaPlayer.reset();
mediaPlayer.setDataSource(audioInputStream.getFD());
mediaPlayer.prepare(); mediaPlayer.start();
}

Here is the exception:
E/MediaPlayerService( 555): offset error
E/MediaPlayer( 786): Unable to to create media player
W/System.err( 786): java.io.IOException: setDataSourceFD failed.: status=0x80000000
W/System.err( 786): at android.media.MediaPlayer.setDataSource(Native Method)
W/System.err( 786): at android.media.MediaPlayer.setDataSource(MediaPlayer.java:632)
W/System.err( 786): at net.xxx.xxx.AudioMediaPlayer.playAudio(AudioMediaPlayer.java:69)
W/System.err( 786): at net.xxx.xxx.Downloads.playRecording(Downloads.java:299)
W/System.err( 786): at net.xxx.xxx.Downloads.access$0(Downloads.java:294)
W/System.err( 786): at net.xxx.xxx.Downloads$1.onClick(Downloads.java:135)

I have tried seeking some answer of the offset error, but not really clear what this issue might be. I download the file with this code:
public FileOutputStream executeHttpGet(FileOutputStream fileOutputStream) throws ClientProtocolException, IOException{
try { // Execute HTTP Post Request
httpResponse = httpClient.execute(httpPost, localContext);
int status = httpResponse.getStatusLine().getStatusCode();
// we assume that the response body contains the error message
if (status != HttpStatus.SC_OK) {
ByteArrayOutputStream ostream = new ByteArrayOutputStream();
httpResponse.getEntity().writeTo(ostream); fileOutputStream = null;
} else { InputStream content = httpResponse.getEntity().getContent();
byte[] buffer = new byte[1024]; int len = 0;
while ( (len = content.read(buffer)) > 0 ) {
fileOutputStream.write(buffer,0, len);
} fileOutputStream.close();
content.close(); // this will also close the connection }
} catch (ClientProtocolException e1) {
// TODO Auto-generated catch block e1.printStackTrace();
fileOutputStream = null; } catch (IOException e2) {
// TODO Auto-generated catch block e2.printStackTrace();
fileOutputStream = null;
} return fileOutputStream;
}