| The Formula for the Cure | Album | December 9, 2004 | Compilation |
| Weapons of Mass Destruction | Album | December 8, 2004 | — |
| The Red Light District | Album | December 7, 2004 | — |
| An Open Letter to NYC | Single | December 6, 2004 | — |
| Auf die harte Tour 2004 Live-Set | Album | December 6, 2004 | — |
| Nie wieder | Single | December 6, 2004 | — |
| These Walls EP | EP | December 6, 2004 | — |
| Warum? | EP | December 6, 2004 | — |
| Curls & All Caps | Single | December 1, 2004 | — |
| FEAT A.I. | Album | December 1, 2004 | Compilation |
| DJ Smallz & Tapemasters Inc: Road Trip From NYC to Miami | Album | December 2004 | Compilation |
| Piracy Funds Terrorism, Volume 1 | Album | December 2004 | Remix, Mixtape/Street |
| Steppin' Again / Mindgames (Sneaky Pete edit) | Single | December 2004 | — |
| All or Nothing | Album | November 30, 2004 | — |
| Numb/Encore | Single | November 30, 2004 | — |
| Till da Sun Cums Up | Single | November 30, 2004 | — |
| Urban Legend | Album | November 30, 2004 | — |
| Urban Legend (Chopped & Screwed) | Album | November 30, 2004 | Remix |
| Collision Course | EP | November 29, 2004 | — |
| Street’s Disciple | Album | November 29, 2004 | — |
| What U Gon’ Do | Single | November 29, 2004 | — |
| 2006 (Some Music pt. 2) | Album | November 24, 2004 | — |
| With the Lights Out | Album | November 23, 2004 | Compilation |
| Anthologie 1991–2004 | Album | November 22, 2004 | Compilation |
| Underground 4.0 | EP | November 22, 2004 | — |
| The Steady Gang Mix Tape | Album | November 19, 2004 | Mixtape/Street |
| Crunk Juice | Album | November 16, 2004 | — |
| Die, Rugged Man, Die | Album | November 16, 2004 | — |
| Greatest Hits | Album | November 16, 2004 | Compilation |
| R&G (Rhythm & Gangsta): The Masterpiece | Album | November 16, 2004 | — |
| X-Filez, Volume 3: The Madman Era | Album | November 16, 2004 | Compilation |
| Dirt Off Your Shoulder/Lying from You | Single | November 15, 2004 | — |
| The DJ 2: In the Mix | Album | November 15, 2004 | Compilation, DJ-mix |
| The Ultimate Collection | Album | November 15, 2004 | Compilation |
| Encore | Album | November 12, 2004 | — |
| La riconquista del forum | Album | November 12, 2004 | Live |
| Charge It to the Game: The Mixtape | Album | November 9, 2004 | Mixtape/Street |
| Encore | Single | November 9, 2004 | — |
| God's Black | Album | November 9, 2004 | Mixtape/Street |
| My Own Worst Enemy | Album | November 9, 2004 | — |
| R.U.L.E. | Album | November 9, 2004 | — |
| Peachtree Road | Album | November 8, 2004 | — |
| The Beginning and the End | Album | November 7, 2004 | — |
| The Best of Timbaland & Magoo | Album | November 3, 2004 | Compilation |
| Chamber Music | Album | November 2, 2004 | — |
| Encore (Bonus CD) | EP | November 2, 2004 | — |
| Oye mi canto | EP | November 2, 2004 | — |
| Oye mi canto (reggaeton mix) | Single | November 2, 2004 | — |
| 1, 2 Step | Single | November 1, 2004 | — |
| Avant de partir | Single | November 1, 2004 | — |
| Ear 2 the Street Volume One | Album | November 1, 2004 | Mixtape/Street |
| Karma | Single | November 1, 2004 | — |
| Off the Wall / Thriller | Album | November 1, 2004 | Compilation |
| The Gloaming (DJ Shadow remix) | Single | November 2004 | Remix |
| OuMupo, Volume 2 | Album | October 29, 2004 | Compilation |
| Afterthought | Album | October 28, 2004 | — |
| Come You Masters of War | Single | October 28, 2004 | — |
| 77 Minutes of Strugglin' | Single | October 25, 2004 | — |
| Electro Ghetto | Single | October 25, 2004 | — |
| Sommerregen | Single | October 25, 2004 | — |
| Wonderful | Single | October 25, 2004 | — |
| Où va la vie ? | Single | October 22, 2004 | — |
| Car Wash | Single | October 18, 2004 | Soundtrack |
| Hold You Down | EP | October 18, 2004 | — |
| Boss 2 Paname Vol.3 | Album | October 14, 2004 | Mixtape/Street |
| Dr. Octagon Part II | Album | October 12, 2004 | — |
| Shaheedulla and Stereotypes | Album | October 12, 2004 | — |
| Real Talk | Album | October 11, 2004 | — |
| Bridging the Gap | Single | October 5, 2004 | — |
| The Mixtape Before 9/11 | Album | October 5, 2004 | Mixtape/Street |
| Untold Story | Album | October 5, 2004 | — |
| Lean Back | Single | October 4, 2004 | — |
| Sunday Seance | Single | October 2004 | — |
| Danger Zone / The Truth | Single | September 28, 2004 | — |
| Just Lose It | Single | September 28, 2004 | — |
| Me Against You | Single | September 28, 2004 | — |
| Sex, Love & Money / Ghetto Rock | Single | September 28, 2004 | — |
| Kopf hoch | Single | September 27, 2004 | — |
| Live at WFMU on Mike's Show on 9/25/2004 | Album | September 25, 2004 | Live |
| Samurai champloo music record: impression | Album | September 22, 2004 | Soundtrack |
| Block de Style : Le Meilleur de Soprano et Le Rat Luciano | Album | September 21, 2004 | Compilation, DJ-mix |
| Making More Tracks | Album | September 21, 2004 | — |
| 1st Infantry | Album | September 17, 2004 | — |
| Ma mélodie criminelle | EP | September 15, 2004 | — |
| Dem Franchize Boyz | Album | September 14, 2004 | — |
| The Manchurian Candidate (Music From the Motion Picture) | Album | September 14, 2004 | Compilation, Soundtrack |
| Triple Trouble | Single | September 13, 2004 | — |
| FLASHBACK TO A.I. | Album | September 8, 2004 | Compilation |
| I Got Love in These Streetz | Album | September 7, 2004 | — |
| Surrender: The Mixtape | Album | September 7, 2004 | Compilation, Mixtape/Street |
| Here With Me / IntenCity | Single | September 2004 | — |
| Viel | Album | August 30, 2004 | — |
| THE DEFinition | Album | August 25, 2004 | — |
| M.I.A.M.I. | Album | August 24, 2004 | — |
| Es ist wahr | Single | August 23, 2004 | — |
| Straight Outta Ca$hville | Album | August 23, 2004 | — |
| The Harvest | Album | August 17, 2004 | — |
| White Tees | Single | August 17, 2004 | — |
| The Best of E-40: Yesterday, Today & Tomorrow | Album | August 13, 2004 | Compilation |
| It’s a Love Thing | Single | August 9, 2004 | — |