She is one of my favourite Jpop singer too.
i think actually they called her mizrock instead of miz. if i am right that i think her last album was published a long time ago in Feb, 2006
bittersweet, in the sky, eyes don't lie.....etc are all good songs
oh the photo below is one which i edited few month ago using photoshop
the girl inside is Miz, in case someone hasn't seen her ever before.