return false;
return (obj.getClass() == this.getClass() && ((Media) obj).getValue() == this.getValue());
  public boolean equals(Object obj)  {    if ((obj instanceof MediaName && this instanceof MediaName)        || (obj instanceof MediaTray && this instanceof MediaTray)        || (obj instanceof MediaSizeName && this instanceof MediaSizeName))      {        return ((Media) obj).getValue() == this.getValue();      }        return false;  }