Year: 1990
Blue System - Obsesion (Album)
Blue System - Obsession - 4. Album (Album)
Blue System - Obsession (Album)
Blue System - When Sarah Smiles (Album)
Blue System - 40 Jahre ZDF Hitparade (Compilation)
Blue System - All Around the World (All the Hits and Videos from 1987 to 1990) (Compilation)
Blue System - All Around the World (All the Hits and Videos from 1987 to 1997) (Compilation)
Blue System - Best of the Best - Remix Version (Compilation)
Blue System - Blue System 4 «Forever Blue» Plus «Obsession» (Compilation)
Blue System - Blue System (Compilation)
Blue System - Déjà Vu / Obsession (Compilation)
Blue System - Greatest Hits (Compilation)
Blue System - Magic Blue (Compilation)
Blue System - Magic Symphonies - The Very Best of Blue System (Compilation)
Blue System - Maxi & Singles Collection (Dieter Bohlen Edition) (Compilation)
Blue System - Maxi & Singles Collection Vol. 1 (Compilation)
Blue System - My Star 2.0 (Compilation)
Blue System - Obsession / X-Ten (Compilation)
Blue System - Obsession (Compilation)
Blue System - Seeds of Heaven / Obsession (Compilation)
Blue System - The Ballads (Compilation)
Blue System - The Best Of... (Compilation)
Blue System - The History of Blue System (Compilation)
Blue System - The Maxi Singles Collection 1987 - 1997 (Compilation)
Blue System - The Very Best of Blue System: Magic Symphonies (Compilation)
Blue System - Twilight / Obsession (Compilation)
Blue System - When You Are Lonely (Compilation)
Blue System - Диско 80-х (Compilation)
Die Superhits Des Jahres Aus Der Hitparade Im ZDF (Compilation)
Dieter Bohlen - The Sound of Dieter Bohlen (Christmas & Ballads) (Compilation)
Elbo's Disco 48 (Compilation)
Hansa News Edition Jan./Feb. 91 (Compilation)
Hit Fascination - Top Hits International - Extra (Compilation)
Hit Fascination Extra (Compilation)
Just for You (16 Super Love Songs) (Compilation)
Knight Rider Hits 3 (Compilation)
Modern Talking - 30 (Compilation)
Neue Hits 91 • Das Internationale Doppelalbum (Compilation)
Neue Hits 91 • Die Internationalen Superhits (Compilation)
Neverending Love - Die Schönsten Romantischen Pop-Balladen (Compilation)
Neverending Love 3 (Compilation)
Pop News 2/91 (Compilation)
Smash 9 (Compilation)
Super Hits of Sonic Studio Disco Vol 5 (Compilation)
Training Music Nr. 1 (Compilation)
Blue System - When Sarah Smiles (Maxi-Single)
Blue System - When Sarah Smiles (Single)
Blue System - When Sarah Smiles (Extended Mix)
Blue System - When Sarah Smiles (Instrumental Version)
Blue System - When Sarah Smiles (Instrumental)