[noggin]

If that is the case, why even bother when AMLogic cannot output greater than 2.0 channels of PCM Audio ?

If you don't decode DTS to PCM 2.0 then you can't play content that has DTS audio on a normal TV that only accepts PCM 2.0 input? Base level HDMI audio compatibility is just PCM 2.0 - you can't assume any Dolby or DTS decode functionality.

If you want to legally sell a device that has DTS to PCM 2.0 decode, then my understanding is that it needs to have a DTS licence?

Cheers Noggin, thats a bit easier for all of us to understand

It's the same reason you don't find DVDs with just DTS Audio sound tracks. There is always a PCM, DD 2.0 (or possibly in Europe an MP2 track) as well. This is because DVD players don't have to include DTS decoding as part of the mandated standard, but PCM, DD decoding to stereo and in Europe MP2 decoding to stereo IS mandated. So anyone mastering a DVD has to assume no DTS tracks can be played, so accompany them with a non-DTS track that is included in the mandated standards.

(MP2 never really took off as a DVD audio standard, and was only mandated in Europe ISTR - but was included because Europe wanted an alternative to the Dolby standard - particularly as it was likely DVD recorders would need to cope with DVB-T/S broadcasts at some point which would be MP2)