Do you load Mint from http://www.linuxmint.com/? If load from other sites them may be defective.
Perhaps your DVD is not good .
Remember wait long as DVD eject from driver,then install ready.
You can test DVD on live beffore install it.Start from DVD and test all works.
I hope this can help.
Users browsing this forum: Bing [Bot], Google [Bot] and 23 guests