This Dolby Trailers page lists all the Dolby trailers we have.
To playback the MKV files in Dolby TrueHD you will need a media player such as Media Player Classic Home Cinema (MPC-HC) or a Media Server such as Plex that can output the Lossless stream via HDMI to an AV Receiver that supports Dolby TrueHD. These files have been tested with both MPC-HC and Plex.
To enjoy the MKV files in Dolby ATMOS, in addition to the requirements above, your AV Receiver must support Dolby ATMOS and you must have additional ceiling mounted speakers or Dolby Atmos enabled speakers. Without those you will still experience the audio in Lossless TrueHD.