*Writing, performance, production, mixing: Trent Reznor
====Down In It (''Demos & Remixes'' Version)====
Appears on the ''Demos and Remixes'' bootleg, running 4:35. Almost exactly the same as the ''Purest Feeling'' version, simply lacking the extra layering and sound effects as well as the distorted outro, though it does retain the extended drumbeat intro.
====Down In It (Big Whole Mix)====
Appears on the ''Demos and Remixes'' bootleg, running 4:09. It's an odd version with Reznor whispering a good portion of his vocals under an odd beat. It also includes faux-Oriental sounding synths which are noticeably absent in any of the other versions of the song.