Zoroastre
by Rameau
Erato has released a three-CD recording of Rameau's Zoroastre with Les Arts Florissants conducted by William Christie. 

Christie and Les Arts Florissants had put on a number of concert performances of the opera, among them one that I attended at the Brooklyn Academy of Music.

Andrew Clements wrote at
guardian.co.uk about this recording:  "It is not, to be truthful, one of Rameau's most compelling theatre works, for the drama takes a couple of acts really to take hold, but from the start William Christie's performance, using the 1756 revision of the score, works hard to disguise that weakness with playing and singing of crisp immediacy."
Rameau: Zoroastre
ArkivMusic
amazon.com
amazon.co.uk