This was the fourth and last in Virgin Records' zeitgeist-capturing ambient compilation album series. Whereas the previous three double-CD sets were drawn exclusively from Virgin's back catalogue - albeit that Virgin could draw on Brian Eno, Tangerine Dream, the Future Sound of London etc - this album was drawn from all over the place and even contained a number of original tracks, some of which are still quite rare ("Aphex Airlines", for example). It's a commendably out-there compilation, with Disco Inferno, Zoviet*France, Total, O'Rang and a number of other acts who had been lumped in with the ambient boom (this was just before the terms "illbient" and "post-rock" had been invented). It's my favourite of the four compilations and makes for excellent Doom background music.