i have a DVD Philippe. i want to use USB for video songs. I converted all...

...videos in avi divx format.? i have a DVD Philippe. i want to use USB for video songs. I converted all videos in avi divx format. but some videos work and some videos don't,
those video don't work it shows that video resolution problem i can't look song but i can hear audio pls help IS this usb,s problem or some thing other???????????????????????????????????