This is simply the best soundtrack I've heard. The tracks are varied and all are good (with the possible exception of the interview at the end).
The songs chosen from throughout the series' run have all been re-recorded for this release, and the sheer scope of Scott Bakula's singing talent has to be heard to be believed.
By far and away the best tracks on the album are the Man of La Mancha Medley (which sounds fantastic and actually better than the musicals' official soundtrack), and Scott Bakula's rendition of John Lennon's "Imagine".
The 'singing' tracks are interspered with music from the fantasstically named Velton Ray Bunch and the QL Theme composed by Mike Post (the guy who did the A-Team theme) is still one of the best cult-themes around, especially as there's a version on the CD without the voice over.
This album is definitely worth purchasing, it evokes memories of some of the best television ever to grace our screens and leaves you wanting more.