Oedipus makes an interesting point regarding signal generated distortion.

As he will know, the Tact seems to indicate the presence of possible digital clipping in the software itself. I generally found the CD's that left the indicator on the majority of the time really did exhibit a nasty edge to them that was what most people refer to a digititis. Hard sounding and ugly. BTW this would encompass the majority of modern popular music releases.

Given that this exists on the recording (or more correctly the Cd itself), what is an accurate system going to do with it. The traditional setup tends to make these discs somewhat unpleasent to listen to, so you end up with a setup that sounds great with some well mastered music and rips your ears off with others. This is not neccessarily the ideal solution for a true music lover IMO.

And, because it's on the software, no amount of increased accuracy in the playback chain will make things better.