Well actually SACDs work on an entirely different principle so this whole point would be moot - rather than using a fixed number of bits (CD redbook standard is 16-bit) it uses 1-bit to describe a movement either up or down. So rather than compressing everything into a maximum range, you just sample it differently (2.8MHz instead of 44.1KHz). I have a few SACDs and they do sound fantastic. It just annoys me that people want for higher and higher quality TV, but they want their music compressed to fυck just so that they can fit 100,000 songs in their pockets.

http://en.wikipedia.org/wiki/Direct_Stream_Digital