They where released in english and japanese. The english dub is pretty good I must say, but you can check them out dubbed aswel if you like to hear the original voices for some reason.
The history slightly changes from the videogames one but it pretty much follows the main plot and adds some extras aswel.
I know they where released in DVD (because I own them), but it would be nice to have them in GOG so everyone can enjoy them, that's the main reason I made this wishlist for.
So... What do you think?
Oh btw, here's the wishlist: http://www.gog.com/wishlist/movies/ys_i_ii_anime