You should have a choice between "Ego Draconis" (ED) and "Flames of Vengance" (FoV) - the Dragon Knight Saga (DKS) is both games combined (and remastered).
If you select ED, you'll start from the beginning. If you select FoV, you'll start from about two thirds of the way through (after the end of the original ED), so you should select ED unless you've played the game before.
