I'm afraid the entry is correct. I wasn't aware of it either, but I'm sure one of our fellow RPG-DPers has the version with the CD.
Before I made the entry I looked around on various RPG sites which mentioned it frequently. I then looked around on ebay, and the CD-version with a double disc case was offered a lot. I then found this picture in the completed listings:
It says indeed on the back cover "Includes Limited Edition Soundtrack CD." Also, the CD version was released with the security strip on top of the case, while the later version without the CD doesn't have the security strip. If that can count officially as a second printing, I don't know. It was referred to as such very often.
Too bad that the thing exists. I have the two versions of Phantom Brave and Marvel Ultimate Alliance, but not Nocturne. I got the non-CD version from a Gamecrazy sale new for $18 some time ago, it is still sealed, and thought I lucked out considering the price for the game today. That is why I never looked around on ebay or other sites and didn't notice that the CD version exists.
One thing is for sure: I won't pay $90 for the CD version, that is out of the question. It would just irk me to no end to pay so much money.
I assumed I'm only two games short of all the PS2 RPGs, and now there are still the two deluxe sets for Mana in March, Baroque will be released in one month, and now last but not least this damn CD version.