Well, yes. It's the full score as sounds along the movie, but to be honest, I expected the complete soundtrack, respecting almost everything, from the beginning to the end, and it would have fit into two cds, instead of one. I know that doing it, some themes of the recording had to be cut. Somehow, the result is as expected. A very good release, but if all Philip Glass music could have been included in two cds rather than one, it would be perfect.
My tracklist for the complete movie soundtrack would look like this - Will anyone, individual or record label, think about it? ;)
The full unabridged film score/soundtrack. Unlike Koyaanisqatsi which might be called the Koyaanisqatsi 'suite' this digipack recording contains everything you hear in the film Koyaanisqatsi / Powaqqatsi [DVD]  which coupled with the second of this trilogy is a feast for eyes and ears alike. Even the sound effects from the film are included in this film score version, leaving nothing out of this amazing aural picture. In the absence of any 'Product Information' I feel it would be helpful to quote from the liner notes of this disc:-
"An abbreviated version [mentioned above] of the film's soundtrack was released in 1983. Despite the fact that the amount of music in the film was nearly as long as the film itself, this soundtrack release was only 46 minutes long, and only featured some of the film's pieces. In 1998, Glass re-recorded an album with Nonesuch Records with a length of 73 minutes. That recording, Koyaanisqatsi included two additional tracks from the film, as well as extended versions of tracks from the original album. The album was released as a Philip Glass album titled Koyaanisqatsi rather than a soundtrack to the film".
This Orange Mountain Music recording, therefore, is the most complete soundtrack to the film and the most detailed recording of the music.