Here's another chant set, this one under the care of the In Dulci Jubilo chorus under the conduction of Alberto Turco. The version I own was released under Orbis Classics back in '98, but it's pretty much the same album with a different cover. Enjoy and keep in touch.

http://www.mirrorcreator.com/files/0KO4AOX3/Salve_Festa_Dies_-_Gregorian_Chant_for_Seasons_of_the_Year_(Naxos__1 993).zip_links

New links added.