Audio technology isn't improving. It's basically dead in the water. You can say 44.1k 16bit is good enough for anyone and be correct (not counting 'pros'). The digital audio signal has saturated our perception. The typical internet connection can easily carry it. The typical cpu can process it to death. and you can nearly store *all* recorded contect on a single harddrive (coming soon). Video will go the same way. Here is my road map to saturating human visual with digitial equipment....given there are 6 million color sensors in you eye and they can sense color at about 30fps. Current 1080p has 3 million color emmiters, and can run 60fps. now: 1080p common. (20% to saturation) 2 years from now: high dynamic range hd (33% to saturation) 5 years from now: Larger 2xHD resolution super bright high dynamic range large screens and quality HD stereo glasses (50%) saturation . 7 years from now: light, cheap, 2xHD resolution stereo glasses (100%) saturation