Hard Disc Audio is Your FriendFolks,
There seems to be a lot of misunderstanding out there.
First off, computers can do something that cdps can not do (at least most of them can't). They can read a cd more than once. A dedicated transport reads a disc in real time..if it reads errors, you get guesses. A computer will go back and reread that disc. It should read exactly every bit on the cd disc.
Therre are many ways to get that data out of your computer. Wireless, USB, spdif, toslink, firewire, ethernet. While some have advantages over others, each method is only as good as the engineering that went into its implementation. I am sure somewhere out there is an engineer who can make toslink sing. To argue about which is better is pointless.
I switched to computer audio because RedBook sounds more real coming from a hard disc...wether its my main system or my ipod...music seems less compressed and more relaxed than it did from any combo of transports/dacs/player/etc.(Theta, Monarchy, Museatex, Sony SACD,on and on)
The quality of the dac matters. Once you get the data out of the computer, the dac matters. I don't care if its upsampling. oversampling, nonos, whatever.