Hi Paul,
I was in traveling Australia when Orbital 2 came out. At the time I remember being convinced that the sound that comes in at 2 minutes on 'Walk now' was a sample of an Australian pedestrian crossing 'alarm'.
Am I right, or was it the microdots...?? .
All the best,
John
P.S Incidentally, we listened to that album on constant rotation on a drive from Syndey right the way up the coast to Cape Tribulation. The sounds / synths / drums you guys used have never left me. Totally changed my life.