Forum:Please Help me installing Starcraft

Basically to start off i swear to god i brought the original Starcraft and broodwar on CD i had it installed on my comp but then i moved to a different house i left the cd in my old house and i cant go and get it cause its like half way across the world =/ then i couldnt find a way to start starcraft on my computer without a cd so i decided to delete it because it was taking up space that i needed for other things. then lately i've started to miss playing starcraft ALOT and i dont want to buy it again cause why bother when I got it already? so i decided to download a T*rrented version of it but sadly its .dmg which is fixable but i dont know how to so please help? ^o) =/