Quote:
...if I play CDs (5-disc changer) on random, one of which is a DTS CD,
the new 950 does not want to switch to DTS to play it, it continues with
Stereo,



This operation is correct. The last output configuration (processing mode) was stereo,
not 5.1. The system was still decoding DTS and downmixing the 5.1 channel source
to 2 channels in order to comply with the fact that the last listen mode (or output
configuration) was set to stereo.

Quote:
if I 'tell' it to play in DTS it does



This operation is correct. The last output configuration (also known as
processing mode)was DTS 5.1, not stereo. The system was still decoding
DTS, but now it was NOT downmixing the 5.1 channel source to 2 channels
in order to comply with the fact that the last listen mode (or output
configuration) was no longer set to stereo, but instead was set to 5.1
channel output mode ("DTS").


Quote:
and then when a regular PCM disk loads
it plays in NEO:6.



This is also proper behavior. If the user was listening to audio over 5.1 channels,
when the source changes to PCM, the 950 automatically sets the
DSP processing mode to try to deliver audio over the same number of
channels. The DTS PCM processing algorithm which correctly succeeds in doing this
is DTS Neo:6.