for IDX/SUB support you can just add vsfilter.dll file (DirectShow filter to display image subtitles / IDX+SUB combo) to the installation directory and add an option in the GUI to register/unregister it to splash pro (no license problem since it's free filter.) vsfilter licence is free only for fre...
I understand. I don't have any lossless equipment. Have you analysed the spectrals? Or the input on your lossless receiver reports a lower frequency? I believe very few have certified DTS-MA receivers or notice the diference. But yes, a true HD player should output all possible codecs up to 192KHz....