IMO there are only around a dozen or so techno/electronica albums worth buying and at least 2 of them are by Underworld, this being the best of the official albums. The best is the 'Dark and long' Swedish import. This is worth getting even if just for Cowgirl.

Underworld certainly have the potential to make roof-raising tracks that can create the feeling of a tribally gyrating, spotlight soaked rave right in the comfort of your own living room! Dark and Long and Cowgirl for example. Other highlights include the excellent Dirty Epic, garbling out lyrics against the pounding drum beat that evoke the singer's desolate view of inner city existence. Standing in stark contrast to the rave tracks are such peaceful and subtle modern day lullabies as the Tongue and River of Bass. An electronica classic from when Underworld were at their prime.

The second best 'electronica' album ever. Highlights are 'Cowgirl', 'dark and long' and 'MMM skyscraper..' . A slinking sexy beast of an album. A must.