Hello,
you are using the disc as a harddisk, or you are using UDF or something. This is a great disaster. And there are 7 steps to go for the installation. This takes 30 minutes at least. Maybe you expect 2GB memory. I risk to destroy my Notebook DVD drive by trying to install. This is not a diskette drive. You did this totally wrong. You cannot swap on an optical disk. And it seems you do.
Sincerely
Matisse Groening