Simple audio player - "Invalid Locator"

[grasshopa]

Hi,
Trying to play a sound file off the filesystem:

    Player player = Manager.createPlayer("file:///" + currDirName.toString() + fileName.toString());

    player.realize();
    player.prefetch();
    player.start();
  }

(The path here translates to "file:///E:/145.wav").
This plays fine on the Sun emulator (although 15-20 second delay).

The nokia emulator throws exception however: when calling createPlayer I get MediaException: invalid locator file:///E:/145.wav.

I have tried the InputStream version of this code and just keep getting outofmemory errors or device error errors (despite trying the fixes suggested).

I have tried both MP3 and WAV files. The emulator is 6230i.

Any help appreciated,
Thanks.