Installing CS6 prodprm off disk

I am trying to install CS6 prodprm off the disk onto my Win 64 bit computer, got to 59% complete and already had the second disk in when it asked me to "insert disk CS6 prodprm 2 to continue" which was already in?? I pulled it out, then back in; tried all the other disk even the mac ones. Then read on the forum to download it to the hard drive and install from there, but now when I put them in they dont even show up?? also I had the cs6 trail before this. Please help!!