2 DVD part unstall HELP

[Funkdeluxe]

Ok trying to install a 2 disc sample dvd after first disc set up is complete it asks to put in the second dvd? I mounted both iso to virtual drive and copied over the data.Problem is i cant put in the second dvd because i dont have a dvd of disc 2 just all the data extracted from it.Both dvds are over 4.7 gig hence using a virtual drive to extract data how do i get by this problem?
I would be very grateful for any help.Thx