The duet, "Time To Say Good-by", that was played at the conclusion of World Series is, I believe the version recorded by Mr. Boccelli and Ms. Brightman. It is on a CD of one of Mr. Boccelli's concerts, as well as a CD of one of MS. Brightman's. I have not seen either in a commercial "record" store. However, if your local PBS station has a "commercial" store in your area, the CDs can be purchased there, or through Wireless or Signals, the NPR catalogs.