Missing catalog numbers

Anyone want to shed light on these missingno.s?

We all know about CAT 023... but 87 and 112 seem to also be missing on Discogs no?

I don't know about cat 023. What's it about?

(maybe I do but I don't recall... =S )

CW LP

003 missing as well, unreleased "IG-88"

Yeah 087 and 112 are odd - not even a listing of what it was "supposed" to be, unlike 023

CAT 112 is apparently 2 Remixes By AFX EP (The Rephlex cat# can only be found in the runout grooves - http://www.discogs.com/AFX-2-Remixes-By-AFX/release/1259900 webshops are mentioning this as well: Cat No: MEN-1CD/CAT-112CD )

If that's a fact, then maybe some other obscure release has a double cat#, maybe it's this one? http://www.discogs.com/Various-The-Mururoa-Project/release/95756 - but that seems pretty unlikely seeing the release date on that was '96, and CAT#086 and #088 were around '99. Any other possible suspects?

edit: Actually, I think CAT#087 is the 100% Genuine CD. Released in the same year as 086 and 088 and had a BOX CAT#

missing cat?

http://www.27bslash6.com/missy.html