Many may buy this album purely because Change the World (the Inuyasha theme song) is on here. While that is an awesome song, the rest of the album isn't quite as good. There are a few good songs other than Change the World, but many of them are ok or just plain wierd. It probably would help if I understood the lyrics but not the point.....
Furthermore, if you get this album factory sealed, it comes with a poster of the band and what I like to call a "Commemorative Squishy"-a blue foam-thing on a chain that resembles the pattern on the album cover. While I have no idea what to do with this "squishy", it's an interesting little bonus.
Overall I recommend you think twice before buying it. Don't be lured in purely because it's a means of obtaining Change the World.