I've not seen that before. I seems like the desktop is crashing. Could you try booting without the splash screen, press e on the GRUB menu item, remove the word splash and press F10 to continue booting.
I doubt the DVD is faulty, but you can check easily enough, open a terminal and run
- Code: Select all
If there are any errors on the disc, it will let you know.
"Insanity: doing the same thing over and over again and expecting different results." (Albert Einstein)