• Isak Anderssen: “Minnebok - EP” (Digisak 2011)
 
• Various - “Peak The Source - Vol. 1” / compilation, free DL release:
Isak Anderssen - “Glissetude” (SuRRism Phonoethics 2011)
 
• Isak Anderssen: “Ylajali” - single, DL release (Digisak 2010)
 
• Isak Anderssen: “Scandinesque” EP, DL release (Digisak 2010)
 
• Isak Anderssen: “The Kromatican / Evig”, ltd. edtition 3 inch CDR (Tavarn Keben 2008)
 
• Various - Don't Get Annoyed Get Inspired! / comp. CD: Isak Anderssen - "Koka Kittelen Full" (Ambolthue 2007)
 
• Pointus Piratus - "Blood Is The Ocean" EP (Letzton Records 2005).
 
• Musikk Under Oslo 2005 / comp. CD: Båndvidda – "Bygg (muo-edit)" (promo 2005).
 
• Beatservice Jukebox / compilation CD: Upper Rooms – “Trans Balkan Express” (Beatservice records 2004)
 
• Edit Rooms: “Volume 1” EP (Letzton Records 2004).
 
• Isak Anderssen: "The Sweetest Nectar EP" (Letzton Records 2004).
 
• Money Will Ruin Everything / compilation CD: Isak Anderssen - "3rd Wilderness Song" (Rune Grammofon 2003).
 
• Upper Rooms: "Trans Balkan Express EP" (Beatservice records 2002).
 
• Upper Rooms: "Canti Popolari" CD (Beatservice records 2002). Composed with support from Komponistenes Vederlagsfond, and released with financial support from Fond for Lyd og Bilde.
 
• Arctic Circles 3 / compilation CD: Upper Rooms – "The Walkthrough" (Beatservice records,  2001).
 
• Upper Rooms: "Video Bambino" LP Version (Beatservice records 2000).
 
• Upper Rooms: "Video Bambino" CD (Beatservice records 2000).
 
• Upper Rooms: "The Way We Tear" / "But I Am"  7" single (Beatservice records 2000).
 
• UKS - Forum of contemporary art no 1/2 1999: Isak Anderssen - Upper Rooms: "Welfare" (UKS 1999).
 
• Arctic Circles 2 / compilation CD: Upper Rooms – "Stay Dark Dream" (Beatservice records 1999).
 
• PsychoActivated 4 / compilation CD: Upper Rooms - "Closing Eyes (Tender-Mix)" (PsychoActive 1999).
 
• Upper Rooms:  "So (Heartbreak Version)" / "Ulaal"  7’’ single (Disturbance records 1998).
 
• Upper  Rooms / Anodyne-Sophitia / Silver Scale 7’’ single (Disturbance records 1998).
 
• Upper Rooms: Bedroom EP (No label promo CD 1997).
 
Mp3-releases:
 
• Pointus Piratus: South Sea Love Song (www.skrudd.com 2005)
 
Remixes:
 
• Spunk: Filtered Through Friends: Upper Rooms: "Thing That Hurts" (Rune Grammofon / ECM 2001).
 
• Espen Lind: "Black Sunday (The Fruitmunch Version) (Universal Music 2000). (In collaboration with Magnus Rostadmo).
 
Special appearances:
 
• Madrugada - “Industrial Silence - DeLuxe Edition” (EMI 2010)
 
• The White Birch - "Come Up For Air" (Rune Grammofon 2006)
 
• The Jessica Fletchers - "What Happened To The?" (Perfect Pop 2003)
 
• When - "Prefab Wreckage" (Tatra Records 1994)
 
• Embee Normann - "Wonderland" (Stageway Records 1993)
 
Videos:
 
• Edit Rooms - "Fallody/Melody Green", directed by Isak Anderssen (Letzton Records 2006)
 
• Beatservice Video Jukebox - best of beatservice music videos 1994-2004:
Upper Rooms - "Video Bambino", directed by Sverre Strandberg (Beatservice records 2006)