There are 10 tracks here (plus 1 bonus track), but I don't know the exact length of the album and I can't comment on the packaging - since I only own a taped copy at the present moment (although I'll probably buy the CD at some point). I can however comment on the lyrics, which are in English this time instead of Norwegian, and are of the usual anti-Christian variety including plenty of references to Satan, etc). 'Enthrone Darkness Triumphant' is probably going to be Dimmu Borgir's biggest selling album, but interestingly it has a more intense sound than their previous works - at least, the production is far stronger than the lightweight sound of their two previous full-length offerings, and as a whole it's more appealing than their MCD 'Devil's Path.' There are still some nice, pleasant melodies and lots of ethereal keyboard etc., but there's a professional blending of such ambience with heavy riffs, precise drumming and a great, grim vocal performance. (One song also has some weird, reverbed female speaking).
The music itself originally gives the impression of being quite varied, but on listening to the album from beginning to end, I did detect similar ideas and chord changes in different songs. Luckily there are songs like 'Entrance,' with its slow, relaxed Thy Serpent-like vibe, to catch the listener out - and it is a great contrast to the rapid drumming and Old Man's Child-ish melodies of the following song, 'Master Of Disharmony.' Everything here is of quite a high standard, although the keyboard is definitly at its best when played alongside the other instruments, as it sometimes sounds a bit too basic and too 'alone' during the short synth-only sections.
Doubtlessly, many people will accuse Dimmu Borgir of 'selling out,' and while this is a powerful album, I agree that it does seem to be tailored towards reaching a wider audience than before. But if you don't mind the more 'polished' brand of Black Metal, then this is for you.