question regarding play disk emulation

[who13]

ok..heres my situation....
i have a older game called Casanova..
its a 2 cd game...during install only cd1 is needed for the game..cd2 is the play disk..i scanned the cd and it says theres no protection(used game jack scanner)..i copied the play disk(cd2) to hd and tried making bin-cue,iso,mds,etc so i could try to emulate the play disk without using my original cd.(i dont want to screw up my main cd)..
does anybody have any tricks or suggestions on how i could make this work??
i dont want to use a cd at all...(im aware that i could just make a backup of the play disk but dont want to if i dont have to..)

thanks for your time...