Agreed. Even away from the theoretical considerations of the different nature of DSD versus PCM encoding, there is a palpable sonic difference in the same recording played through as 24/192 or 24/96 versus DSD. I subjectively would characterized the PCM recording as sharper and more glassy as a general rule with the DSD recording being more natural, less fatiguing with better transient dynamics.
Although all this again brings in the question of how the recording was originally made, whether it passed through a PCM stage of mixing before the final DSD mix, or multiple other things.
Suffice it to say that pacwin is right from the theoretical standpoint, that there are significant differences not encapsulated by the information density, and I (and others) feel that there is a significant sonic/audible difference.
Yeang