QUOTE (azerty @ Dec 18 2008, 03:33 PM)

yes it's an hp laptop with roxio preinstalled
OEM limited and crippled edition. Most of the suggestions here may not work. That is typical of a marginal computer, poor video card and, shall we say, poor computer maintenance.
First open MyDVD and go to the top menu, select tools then options, then put the dot near software. Sorry, just relized that you have EMC 9 so you may not have those options.
Post you computer specs. Update both your video card/chip driver and Microsoft's DirectX 9c. Get rid of any temporary files and deffrag your hard drive. (Use CCleaner ( google for it).
Again I don't know if you have this option but when you go to burn, do you see an option to burn to an Image file (ISO)? If so do that and then copy the ISO file to your disc.
In any case, don't have anything else running during encoding - get it started and then walk away for a couple of hours.
Do you have only 456 images or do you have more? Remember only one hour of best quality video on a single sided DVD; up to 2 hours at poorer quality. How many images total and what is the display time for each image?