Rarest CD you have?

I collect rare nu metal CDs so I am constantly on the lookout but right now my rarest is

N.U.M.B. - The Art Of Changing Silence (2002, no pictures of it have ever resurfaced until i took pictures of it for the discogs page, was partially lost)

OR:

FOIL - Thirteen (2005, was not on discogs before I added it this august)

I am the only owner of either CD on discogs