If you want the actual games, look on e-bay. If you want roms, you can find for yourself, it's not that hard. A remake of I and II (Ys I-II Complete) and of III (The Oath in Felghana), and also Ys VI and Ys Origin, all for PC, can be imported from Japan throught Falcom's site. VI is also available in english for PS2. All games have been translated in english, either by fans or officially, except Ys Origin, V and Oath, thought tose last 2 have patches that will be released very soon.