This is the 4-track version from the UK (not to be confused with the almost completely different European version). The Hall's Mix is essentially an edit of the album version. Dark Train is the wonderful track that almost any underworld fan has heard. This is the 9:48 version, and is mixed into Most 'Ospitable. This is about 5 minutes or so of ambient relaxation. Lastly is 215 miles, probably so called as the song is about 20 minutes long. Very good stuff, with new themes dropping in and out every few minutes or so. It's similar in tone and scope to the songs on the other Dark and Long single. This isn't always easy to get, but it's certainly worth it. One note: Most of these have little or nothing in common with the original Dark and Long song itself.