How To Mount Two Images How To Mount Image ?

How to mount image ? - how to mount two images

I just downloaded received from game to game folder Cointainer bittorrent.The many abc.iso files.like (first part), abc2.iso (second part), etc. ...... can someone tell me what to do, to say file.my friends to install, you need to image.What Is that true fit? Can anybody goal guide.thanx GIV