L.C.Concept, developed by French Elisabeth Lochen and another partner, was first demonstrated in 1991 with a experimental re-release of the 1990 film "Cyrano de Bergerac". The first commercial release was done in late 1991 with "Bis ans Ende der Welt" Wim Wenders. In total about 30 films featured a L.C.Concept soundtrack including Cliffhanger, Basic Instinct, Between Heaven and Earth, Bitter moon, the Lover... This system is known now as DTS.