USS KG5 said:
Would it not be nice if in additon to lossless downloads they switched to HIGHER than CD quality, so when getting a download you actually got a file of equivalent to DVD-Audio or SACD quality? Certainly a nice benefit for hi-fi enthusiasts.
Not really. Unless you think I want a shitload of inaudible spectrum.

Nyquist's theorem is pretty straightforward on the minimum sampling rate needed to reconstruct a signal: it's just 2 times the maximum bandwidth. Well our ears can only hear up to 22,000 hz so theoretically 44 khz is sufficient. The sampling rate on a compact disc is usually 44.1 khz so there is really no need for the whopping 96 khz available on DVD-Audio.
Likewise 16 bit depth is also enough for any quantization error to be inaudible. Hell in these days the sound engineers don't even use any more than a small fraction of the available 96 db range because all of them want to make their music as evenly loud as possible.

Flavius said:
Was it on this site - or some other place where I read it today? Don't recall, but for one there are scientific studies out there proving that people have a hard time telling if there are looking at 480 or 720p.
It was between 720p and 1080p. You might be interested in this chart.
http://hdguru.com/wp-content/uploads/2006/11/hdtv_distance_chart.pdf
One thing is for sure though. The qualitative visual difference between DVD and Blu-Ray is pretty significant.
You need a native 1080p capable TV to really benefit from this. I wouldn't be surprised if this takes another couple years even after this news today. The industry, though, can speed things up a bit by lowering the prize significantly.
True like I said before the biggest obstacle to HD adoption isn't the cost of the titles or players but the price of the TVs. DVDs during its early days was also a very expensive commodity but at least you can use it with existing TVs. It would be pointless to show Blu-Ray on a low def TV even if it's possible.