Ravi, I've got the SACD version and have only listened to it once. I'm sorry I can't give a direct comparison because I haven't listened to the redbook version. The only other NIN album I own (or owned) was a cassette of "Pretty Hate Machine."
In any case, only played the stereo version and not the 5.1. Compared to other SACDs I've heard, the sound reproduction on this is quite good. I don't know if it has to do with the actual recording or room acoustics, but sometimes I heard sounds coming from the sides. Very enveloping for two channel. If you want to give your speakers a dynamic workout, this is it. Goes from very soft to very loud. Anyway, just my two cents.
