Well, I don't want to rain on your parade, but the Samsung 5000 (on it's current firmware at least) can't decode Dolby EX and DTS-ES on SD DVD, only 5.1 max. The player also can't decode Dolby TrueHD on HD DVD and Blu-ray in 5.1 or 7.1, only 2.0 stereo.
The Dobly TrueHD issue is pretty big since there are quite a few HD/BDs that have that type of audio and Blu-ray especially seems to be slowly shifting away from PCM to TrueHD audio.