Hi Hoodbow,
Dolby, DTS is only supported on passtrough, as the COOD-E TV is a XBMC/KODI Streaming device as main function, But Playback is part of KODI functionality, so it play dolby and dts please connect the device to a AMP or TV with DOLBY/DTS licences, then you will be able to play these files.
Gr, Jeremy