The first one that came to my mind is Loreena McKennitt "The Mask and Mirror". Very spacious with a great sense of depth, width, height and center fill. Sean
On vinyl, the Decca La Fille Mal Garde (recently reissued by Speakers Corner, I believe) is one of the best ever, as is the Classic reissue of the Royal Ballet Gala. The recent Reference Recordings series from the Minnesota Orchestra is excellent on CD (the more recent ones seem to have a deeper soundstage, somehow), as are the Harmonia Mundi recordings with McGeegan and the Philharmonia Baroque.