I have a very fundamental question regarding digital output (optical or coaxial) of CD player. If same CD is played from £50 CD player and from £2,000 CD player, will their digital output different? If I am going to use only digital output, is there a point spending 2,000 on a CD player? (shouldn't I spend the money for better AV receiver?) What is the format of data on audio CD? (ie sampling rate and size). Is it same for digital output of CD player? If not, what format is it? Please can someone who knows definite answer help me.