The first five tracks on this score, including the catchy title song performed by Limahl, were composed and produced by Giorgio Moroder. It should be noted that tracks 2 and 3 - "Swamps of Sadness" and "The Ivory Tower", are not the exact versions used in the film. "The Ivory Tower" track in particular has a stronger bassline and more discernible beat, although it should be noted that these are the original tracks as produced by Moroder (and not remixed for this album).
Tracks 6 -15 are taken from the original 17 track score composed by Klaus Doldinger. That score, which exists on the German version of the film, lacks the title song but also contains cues not heard in the American version of the film. This soundtrack is also available (look under Doldinger or the original title "Die Unendliche Geschichte").
The link is to be found in the comments