code: public String getLayer()
  	{
  		String str = null;
  
  		if ((layer >= 0) && (layer < layerLabels.length))
  		{
  			str = layerLabels[layer];
  		}
  
  		return str;
  	}
docs: Return the layer description of the mpeg in string form.
  Ex: Layer III
  
  @return the layer description of the mpeg