Gino D'Aurio has an FIM XRCD titled "Flamenco Passion" that is a standard test disc for me and many others, he has several other great discs, but the recording quality on that one is unbeleivable, as is the music. I would start with this one for sure!
Paco Delucia is another big guy in this genre.
Here is a link to another thread that addressed this same question.
http://forum.audiogon.com/cgi-bin/fr.pl?gmusi&1106276700&openusid&zzKennyt&4&5#Kennyt