First off, Im using a pioneer A05 and my standalone player is a toshiba sd-1800

heres the problem, i have burnt a triple x release (includes dvd extras).
The main movie plays perfectly fine, but when i try to play any of the extras the audio is perfect, but the video is reallyt messed up. The bottom half of the screen is solid green or grey and the top half of the screen has the video, but really messed up like as if the tracking was really off on a vcr. and sometimes the top of the screen goes grey too, and will come back to being really poor video again.
I assumed that it was just a problem with what i downloaded, but it turns out that when i try to play it on my comp., it plays perfectly.

just now i tried to make a vcd dvd and the same kind of playback happened with this disk... again, when using a dvd player on my comp, it works perfectly.... so it must be something with my standalone player.
i have tried two other movies that were just the movie (no menus or extras) and they worked perfectly.

so i ask, can anyone please tell me why i am getting this playback problem, and what i can do to solve this problem?
thanks.

by the way i have tried using nero and prassi primo dvd to burn the movies and i get the same results.
please help