The opthalmic dnb mix is one of the darker, simplistic tracks of the age. Anyone interested in classic drum and low should pick this up. The sole explanation to buy this record album is for the opthalmic mix. You may experience detected this track on DJ DB's, "Shades of Technology". So go drop 12 dollars or 6 pounds, or what feature you. And, do yourself a favor and get Ed flow and Optical's "Naked Lunch/Funktion".