Most of the tracks that can be heard in this CD are based on the theme tune - they all sound roughly the same in parts, but really good if you like that sort of thing I suppose. If you haven't watched the series, this CD compilation with music from the series will make no sense to you whatsoever. But, if you have watched the series, you can really recognise bits of music from the series. Apparently, this CD only features music from series one. But, I think it's still the same in series two.
But, anyway, a great CD if you're a fan of the series, but not if you don't watch it avidly.