Archive & restore OS X 10.4
INstalling 10.4 disc 1 installed ok. Disc 2 will not install. It just sits with no progress. Have to power button off to remove disc 2. Restart computer and asks for disc 2 over and over. Trying other keys only produces "****" sound. Computer will only display insert disc 2 to finish install. Any help will be appreciated.
iMac (20-inch Mid 2007), OS X El Capitan (10.11.1), Beginner