I just did a little experiment: I launched DFU, clicked "play", which displays the intro and then takes you to a loading screen where you see a list of saved games (in DFU format) on the left hand size and can choose "load" or "classic". If you select one of the games and click "load", you play the selected game in DFU. But if you click "classic", then a new list of savegames is displayed on the left hand side - which are savegames from classic Daggerfall. If you load one of these, it seems to get loaded in DFU, too.
There were a couple of confusing things:
- The classic savegame is one from the exit of the starter dungeon (inside), but DFU loads it to a position outside of the starter dungeon. By the way: When I loaded a classic savegame from inside the Fighters Guild in Daggerfall, I arrived right outside the city gates of Daggerfall. Seems to indicate that DFU handles locations differently.
- When I save the loaded game again, and then return to the loading screen, I see a new "list" of savegames containing the new save only.
Be this as it may, it might be worth trying to load a classic DF savegame in DFU classic mode - perhaps this does convert the classic game to DFU?
Perhaps others have made their own experiences?