| Needin' U (Boss Anthem Mix) | 10:00 | |
| Needin' U (Need A Dub) | 5:43 | |
| Needin' U (Original Mistake) | 7:53 | |
| Needin' U (One Rascal Mix) | 9:15 |
| Title, Format | Label | Cat# | Country | Year | |
|---|---|---|---|---|---|
| Needin' U (12") | Definity Records | DF002 | US | 1998 | |
| Needin' U (12") | Manifesto, Manifesto | FESX 46, 566 291-1 | UK | 1998 | |
| Needin' U (12") | 541 | 541416 500095 | Belgium | 1998 | |
| Needin' U (12") | Club Tools | 006573-0 CLU | Germany | 1998 | |
| Needin' U (12") | D:vision Records | DV 213 | Italy | 1998 | |
| Needin' U (12") | Container Records (Spain) | NM 7085 MX | Spain | 1998 | |
| Needin' U (12") | Feel The Rhythm | FTR 4014-6 | France | 1998 | |
| Needin' U (2x12") | Definity Records | WL003 | US | 1998 | |
| Needin' U (CD, Maxi) | Manifesto | FESCD 46 | UK | 1998 | |
| Needin' U (CD, Maxi) | Club Tools | 0065735CLU | Germany | 1998 | |
| Needin' U (CD, Maxi) | DanceNet | DNET123-SPD | Australia | 1998 | |
| Needin' U (CD, Maxi) | 541 | 541416 500096 | Belgium | 1998 | |
| Needin' U (CD, Single, Promo) | Manifesto | FESCJ 46 | UK | 1998 | |
| Needin' You 2 (12") | Manifesto | 575 757-1 | UK | 1998 | |
| Needin' You (12", W/Lbl) | Azuli Records | AZNY 084 | UK | 1998 | |
| Needin' You (2x12", Promo) | Azuli Records | AZNY 084 | UK | 1998 | |
| Needin' You (2x12", TP) | Azuli Records | AZNY 084 | UK | 1998 | |
| Needin' U (CD, Maxi) | Toshiba EMI Ltd | TOCP-4127 | Japan | 1999 | |
| Needin' U II (12") | Manifesto | NEEDJ 1 | UK | 2000 | |
| Needin' U (12", RP) | Manifesto, Manifesto | FESX 46, 566 291-1 | UK | 2000 | |
| Needin' U (CD, Single) | 541 | 541416 500544 | Belgium | 2000 | |
| Needin' U (CD, Single, Promo) | Manifesto | NEECJ 1 | UK | 2000 | |
| Needin U II (12") | Manifesto | NEEDJ 2 | UK | 2001 | |
| Needin U II (2x12") | Definity Records | DF010 - 1 | US | 2001 | |
| Needin' U (I Needed U') (12") | D:vision Records | DV 291 | Italy | 2001 | |
| Needin' U (I Needed U) 2001 (CD, Maxi) | Feel The Rhythm | FTR 4090-2 | France | 2001 | |
| Needin' U (I Needed' U) 2001 (12") | Feel The Rhythm | FTR 4090-6 | France | 2001 | |
| Needin' U II (I Needed U) (12") | Blanco Y Negro (2) | MX 312M | Spain | 2001 | |
| Needin' U II (12") | Manifesto, Manifesto, Manifesto | FESX78, FESX 78, 572-757-1 | UK | 2001 | |
| Needin' U II (CD, Maxi) | Definity Records | DF010 - 2 | US | 2001 | |
| Needin' U II (CD, Maxi) | Festival Mushroom Records, DanceNet | 020142 | Australia | 2001 | |
| Needin' U II (CD, Maxi) | Vendetta Records | VENCDS 312 (CM) | Spain | 2001 | |
| Needin' U II (CD, Maxi, Enh) | Manifesto, Manifesto, Mercury | FESCD 78, FESCD78, 572 757-2 | UK | 2001 | |
| Needin' U (12") | Legato Records | LGT 5062 | Belgium | 2001 | |
| Needin' U² (12") | Club Tools | 012514-0 CLU | Germany | 2001 | |
| Needin' U² (12") | Club Tools | 012515-0 CLU | Germany | 2001 | |
| Needin' U² (CD, Maxi) | Club Tools | 012514-5 CLU | Germany | 2001 | |
| Needin U (12") | Cr2 Records | 12C2120 | UK | 2009 | |
| Needin U (CDr, Single, Promo) | Cr2 Records | none | UK | 2009 | |
| Needin U (CDr, Single, Promo) | Cr2 Records | none | UK | 2009 |
referencing Needin' U II, 12", NEEDJ 1
referencing Needin' You, 2x12", Promo, AZNY 084
referencing Needin' U, 12", FESX 46, 566 291-1