This compilation is quite wierd. I do not know what is the sense of making it, because most of the tracks from here are contained on a much better one "The complete mike oldfield".
We got here some excerpts from his great majestic long tracks (Famous bass riff from "Tubular bells" and wonderfull excerpt from "Ommadawn"), some tracks from his first commercial albums (Arrival,Punkadiddle) and edited "Guilty" from "Exposed" live albums. It is a good album for a collectioners, but for others it is not worth buying. Save your money for "Elements box set"...