Hi All, HDMI 1.3 is getting more and more popular now. For AC3/DTS over S/PDIF, AP could open audio buffer with waveformattag 0x0092 to transfer AC3/DTS via S/PDIF. But for new audio format like Dolby TrueHD, DTS-HD over HDMI. Is there a new tag available, or just use the same tag could achieve the purpose? Thanks for your answer in advance :) Regards, Cyndi