cant get dc games 2 work with boot disk

i dont know why but recently i tried to back up Ready2Rumble II i backed up the game on disk then i inserted my utopia disk in DC then inserted R2RII but all i got was a drilling noise .....WHY!!!
is it that i'm just a thickgit or can anyone help me..
ps i stopped my experiments right there and have not tried to back up any other games i have on DC