Hi everyone. I have been doing some research for a dissertation I've been writing, trying to find out whether surround sound will ever take over and become more common compared to stereo systems for gaming. I've been looking into audio formats used for surround sound and by far, it seems that PCM is a much better format than any bitstream format such as Dolby and DTS. But when looking at different AV amplifiers and receivers, many support Dolby TrueHD and DTS HD and not PCM. Does anyone know why this is and if so, could you possibly link me to an article that might explain this? I am new to all of this so sorry if I sound too ignorant, but I could really use some help. Thanks.