There should be an md5sum file on the site you downloaded the CD. Run the md5sum on the downloaded ISO and see if they match. If they match then your ISO is good and you probably just got a bad burn.
As far as books go, the Unleashed book are pretty good for n00bs. I know there is a "RedHat Unleashed" and a "Linux Unleashed" but I don't know if there is a "Mandrake Unleashed". And all of the manuals for Mandrake can be found on Mandrakes web site. Those manuals plus a "Linux Unleashed" should be a pretty good combo...