I've always loved the instrumental music to Back to the Future, especially the music from the first Back to the Future movie. It was unfortunate that the original CD for BttF pt. I had only 2 instrumental tracks, but this Back to the Future Trilogy CD undoubtedly made up for it. Now, it's complete with the full theme, the thrilling skateboard chase, the climactic clock tower music, the highlights from Back to the Future II (although I would have liked to hear the tunnel chase), and an appropriate "medley" used in the Ride. I got this for Christmas and haven't been able to turn it off ...
Everthing has its share of problems, and luckily this has fewer problems than some. What I can pick out are : There should have been more of BttF II and III, BttF III COULD have been re-recorded, and, as it's already been pointed out, the microphone DOES seem to be a little distant.
Nevertheless, I highly recommend this soundtrack to any fan of Back to the Future or just people who like instrumental music.