To top it all off, you get about 20 minutes worth of readings and prayers recorded live at the service, interspersed among all of the music. I suppose this could be seen as the recording's only drawback (people talking), but I think it makes the recording much more authentic as a representation of the world-famous service. The readings make the recording more than just a musical experience, but a complete Christmas experience - which is what the ceremony is supposed to be. Besides, if you really hate the talking, that's what the skip button is for.
Go ahead and buy this -- you'll be very glad you did.