public void setTrackLength(int trackNumber, int lengthInSeconds) throws SQLException
   {
      Track t = null;
      for (Track track : getTracks())
         if (track.getFormTrackNumber() == trackNumber)
            if (t == null)
               t = track;
            else
               return;

      t.setLengthInSeconds(lengthInSeconds);
      updated = true;
   }