It is mate ...
Load WinUAE and select A500 Quickstart .. Now go to the `RAM` tab and slide the `Fast` to 8mb .. Now goto `Floppy Drives` and select your disk #1 into df0: .. Click `Start` and wait for it to load to the 'Insert 2nd disk' .. Press F12 and eject your disk and insert the 2nd disk in df0: .. Wait an age while it loads all into ram and then da daaa .. *PLAY*
I just tested this with these outta TOSEC :-
Fantastic Dizzy (1993)(Codemasters)(M6)[cr CLS](Disk 1 of 2).adf ~ b1fb4e92
Fantastic Dizzy (1993)(Codemasters)(M6)[cr CLS](Disk 2 of 2).adf ~ f7dadd51