I am missing:

Ys I & II Chronicles Musical Selections (http://vgmdb.net/album/24235)

Ys: Memories of Celceta Silver Anniversary Edition: YS Music History (http://vgmdb.net/album/41644)

Well if you haven't found it already, Here's a link to Ys: Memories of Celceta Silver Anniversary Edition: YS Music History.

http://forums.ffshrine.org/f72/lossless-video-game-soundtrack-thread-v2-126974/42.html#post2526426