Silent hill 3 pc

I have silent hill 3 on 4cd’s and they are alcohol 120 image files(mdf,mdo). I can’t mount that images in alcohol virtual drive because it does not recognise the format. I don’t know what to do with them, or how to install the game.Please help me.

If you own a licensed copy of the game, install it from your original cds. If you then want to make a back-up copy, make fresh images with alcohol; the images so made will be in mds/mdf format.

If you don’t own a licensed copy of the game, read this.