Ookay... Now that I am here, I must say that Enter Suicidal Angels (ESA) was not a demo, but a mini-CD (or CD-EP, as some people like to call them). It had one song (Zodijackyl Light) that was later released on The Mind's I (TMI) album, two other real DT-songs (Razorfever and Shadowlit Facade) and one techno-remix track (the aforementioned Archetype) made from a few songs of the same TMI-sessions. Although generally heavily disliked by the band's followers, Archetype nevertheless has been mentioned by a few individuals as among the best DT-songs(!) and it has appeared on at least one other CD (some techno-collection, as far as I know). The minialbum ESA itself is often held as the worst DT-release ever, probably largely due to the dislike towards Archetype.
About Trail of Life Decayed, it was the first demo under the name Dark Tranquillity (previously known as Septic Broiler) and despite the rather poor sound quality, some "tr00" fans still think it is one of the best DT-releases ever.
-Villain (Doc T. babling for nothing...)