By "spanish guitar" do you mean flamenco, folk music, or the wealth of classical music for guitar by Spanish (and Latin American) composers? If the last, there's a wealth of material in the Naxos Guitar Series: every one is wonderful, and strongly recommended. A good place to start would be the discs by Jason Vieaux (also his discs of Ponce and Albeniz on Azica) but you can't go wrong with any of them.
