This code used to work. Then, maybe I changed something, somewhere (or if I know Android right, an update introduced a bug in the media player). It stopped working on some devices! Especially my Nexus S (2.3.6).

The file test.m4a (17 775 201 bytes) was downloaded by the app. To verify its integrity, I copied it to the SD and played it on my PC. No problem! Also binary-compared it with the original file, and it matched 100%.

try {
    _mediaPlayer = new MediaPlayer();
    _mediaPlayer.setOnCompletionListener(this);
    _mediaPlayer.setOnPreparedListener(this);
    _mediaPlayer.setOnSeekCompleteListener(this);
    _mediaPlayer.setOnBufferingUpdateListener(this);
    _mediaPlayer.setOnInfoListener(this);
    _mediaPlayer.setOnErrorListener(this);

    // I even tried reading the file from SD card. Same error...
    File file = new File("/data/data/com.mycompany.myapp/files/MediaCache/Test.m4a");
    // file.isFile() == true
    // file.length() == expected value!

    FileInputStream is = new FileInputStream(file);
    _mediaPlayer.setDataSource(is.getFD()); // Throws!
    // If I use the filename as parameter, it throws later when preparing the media player...

    _mediaPlayer.prepareAsync();
}
catch (Exception e) {
    // java.io.IOException: setDataSourceFD failed.: status=0x80000000
    e.printStackTrace();
}

Q: What might cause this IOException for setDataSourceFD when the file is indeed valid?

UPDATE: Here's a 98 kB audio file that I cannot play on my Nexus S (2.3.6): http://www.2shared.com/audio/wUKoRiQk/test.html

A friend of mine runs some ZTE device (2.2) and it seems to work. I don't get it!

android media-player ioexception
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