> I understood the media source player would actually decode DTS and is not just upmix. - But ONLY if played in their mediasource player - which as I understand is the *only* way to play DVD-A discs, DVD-A discs being the only thing I've seen thats DTS encoded personally. The name might be misleading. I don't think DTS NEO:6 is a DTS decoder at all. I've used it with stereo sources. It provides good matrix decoding for stereo sources. See this: http://www.dtsonline.com/media/uploads/pdfs/neo6.pdf What I find interesting is the bit about steering. The MatrixMixer (a free DirectShow filter that implements ProLogic) has a similar feature, if I understand "steering" correctly: its decoding matrix is adjusted dynamically, depending on content. For example, if the frequency band associated with human speech has a strong signal, the center could get a more prominent role. I wonder if something like that can be implemented in DSP hardware? If NEO:6 is just a DSP program and one could dump the code... NEO doesn't have any configurable options, just two modes: movie and music.