def get_trailerLinks(self):
        """Returns dictionary with trailer names as keys and list of
        trailer urls as values. Each trailer can have more links due
        to different qualities.

        Example:
        {'Trailer':['url1','url2'],'Featurette':['url1','url2']}
        """
        if self._trailerLinks:
            return self._trailerLinks

        wip = WebIncParser("http://trailers.apple.com" + self.baseURL,
                           "includes/playlists/web.inc")

        self._trailerLinks = wip.getTrailers()
        return self._trailerLinks
Returns dictionary with trailer names as keys and list of
        trailer urls as values. Each trailer can have more links due
        to different qualities.

        Example:
        {'Trailer':['url1','url2'],'Featurette':['url1','url2']}