If you create an empty1.adf and an empty2.adf with the above method, then UAE4All will probably write into the same ads-file for any changes made to the adfs in uae4all (instead of directly changing the adfs). You could try the following: use empty1.adf to save a game in Stunt Car Racer. Then reset and boot Workbench 1.3. Here insert empty2.adf and format it. Now reset again and load Stunt Car Racer. Try to load your previously saved game from empty1.adf. If the save is gone we know uae4all thinks both adfs are the same disk.