The mastering is done very well, so even the CD versions sound really good. What the SACD gives you is a greater sense of spatiality and an extra bit of detail. I most notice the extra detail in the instruments more than anything, percussion mainly and it is most notable during the quieter sequences IMO. Put on track 11, Nardis, and just let it run. It has a little bit of everything; slow, fast, soft, busy, quiet, loud. The SACDs also have bonus tracks that I don't think appear on the CDs in most cases. I listened to her most recent album I think, Verse, and I wasn't too impressed with it.