down in it · halo one.
release date: 1989 on tvt records,   number of tracks: three. recorded at right track (cleveland), unique (new york), and roundhouse (london). reproduced and remixed by adrian sherwood and keith leblanc. the first single from nine inch nails and includes three remixes of down in it.

pretty hate machine · halo two.
release date: 1989 on tvt records   number of tracks: ten. produced by trent reznor with flood, john fryer, keith leblanc, and adrian sherwood. recorded in the studios at the right track (cleveland), blackwing (london), unique (new york), synchro sound (boston), and roadhouse (london). trent reznor's first full-length album.

head like a hole · halo three.
release date: 1990 on tvt records,   number of tracks: ten and one bonus track. music produced and mixed by trent reznor, flood, adrian sherwood, keith leblanc. various mixes of head like a hole, terrible lie and the three remixes of down in it from the first single. Also includes the instrumental mix you know who you are.

sin · halo four.
release date: 1990 on tvt records, number of tracks: four. remixed by adrian sherwood and keith leblanc. this halo contains reznor's first cover, a remake of queen's get down make love, and also three remixes of sin.

broken · halo five.
release date: 1992 on nothing records, number of tracks: six and two bonus tracks.
broken · halo five · mini disc
shipped with the early release of broken. contains the tracks physical and suck.

fixed · halo six.
release date: 1992 on nothing records, number of tracks: six. remixes by coil, t. reznor, danny hyde, j.g. thirlwell, chris vrenna, butch vig, kennedy, beavan, brumbach, and flanagan. the sixth halo from nin contains six remixes from the original album broken. this recording contains various interpretations of songs that appear in their proper form on the "broken" ep. note: the u.s. version is currently out of print.

march of the pigs · halo seven.
release date: 1994 on nothing records, number of tracks: five. "reptile" reconstructions by dave ogilvie. the first single from the downward spiral. contains some instrumental works as well as extended versions of march of the pigs and reptile.

the downward spiral · halo eight.
release date: 1994, number of tracks: fourteen. recording at le pig of beverly hills, the record plant, a&m studios. nine inch nails first full-length release in years. tds contains a theme that continues through the entire album that represents a person on the downward spiral of his life that eventually ends with suicide.

closer to god · halo nine.
release date: 1994 on nothing records, number of tracks: nine. recreated and remixed tracks by trent reznor, sean beavan, brian pollack, coil, danny hyde, and more. memorabilia originally written by david ball and marc almond in 1981. halo nine is composed mostly of closer remixes. there is one remix of heresy, one of march of the pigs, and a cover. note: the us version is currently out of print.

further down the spiral · halo ten.
release date: 1995 on nothing records, number of tracks: eleven. remixes and recreations by aphex twin, trent reznor, charlie clouser, john balance, and more. further down the spiral is a album full of tds remixes, and compares to fixed. if you want something a litte different, this would be it.

the perfect drug · halo eleven.
release date: 1997 on nothing records, number of tracks: five. "the perfect drug" versions. remixes and recreations by meat beat manifesto, plug, nine inch nails, spacetime continuum, and the orb. strictly perfect drug remixes. lyrics coming soon.