Lost Eminem demo tapes

There's another lost Eminem song i'm looking for called "Christopher Reeve", it was originally supposed to be on Encore but after the album got leaked early several of the planned tracks ended up not being on the album(and were later instead put on the "Straight from the Lab" EP)and some new tracks were recorded pretty last minute to include instead. "Christopher Reeve" was one of the original planned tracks, but unlike the others it would never be officially released, MP3's were floating around back in the day but are nowhere to be found today.