==Track listings==* 4-track CD single for the UK# "Sadeness Part I" (Radio Edit) – 4:16# "Sadeness Part I" (Extended Trance Mix) – 5:04# "Sadeness Part I" (Meditation Mix) – 3:01# "Sadeness Part I" (Violent US Remix) – 5:03* 5-track CD single for the U.S.# "Sadeness Part I" (Violent US Remix) – 5:03# "Sadeness Part I" (Meditation Mix) – 3:01# "Sadeness Part I" (Extended Trance Mix) – 5:04# "Sadeness Part I" (Radio Edit) – 4:17# "Introit: Benedicta sit sancta Trinitas" – 3:04* 2-track promotional CD single for Japan# "Sadeness Part I" (Ebi-Kuma Mix)# "Sadeness Part I" (Meditation Mix)* 2-track 7-inch single for France# "Sadeness Part I" (Radio Edit) – 4:17# "Sadeness Part I" (Meditation Mix) – 2:57==Music video==The video shows a scholar, possibly a reference to Marquis de Sade, who falls asleep at a desk in his room while writing ... and has a fantastic, seductive, and enlightening dream.
=== Maxi-CD Single (GERMANY) ===* Radio Edit* Violent US Remix* Extended Trance Mix* Meditation Mix=== Maxi-CD Single (HOLLAND) ===* Radio Edit* Violent US Remix* Extended Trance Mix* Meditation Mix=== Promotional/DJ CD single (США) ===* Sadness Part I Edit=== Maxi-CD Single (США) ===* "Sadeness (Part I) u.s. remix" (5:03)* "Sadeness (Part I) mix" (3:01)* "Sadeness (Part I) trance mix" (5:04)* "Sadeness (Part I) edit" (4:17)* "Introit: Benedicta sit sancta Trinitas" (3:04)=== Promotional/DJ CD Single (Япония) ===* "Sadeness (Part I) mix"* "Sadeness (Part I) mix"=== Promotional/DJ 3’CD Single (Япония) ===* Sadness Part I (Radio Edit)* Sadness Part I (Extended Trance Mix)=== 3’CD Single (Япония) ===* Sadness Part I (Radio Edit)* Sadness Part I (Extended Trance Mix)=== Maxi-CD Single (Англия) ===* Sadness Part I (Radio Edit)* Sadness Part I (Extended Trance Mix)* Sadness Part I (Meditation Mix)* Sadness Part I (Violent U.S.