Audiovox PDVDNS - Manual (Page 52)

52 PD-200
The fourth of the six sections in the setup menu is
entitled TV ASPECT. Within this menu you have
the option to select a 4:3 traditional screen format
or 16:9 wide-screen format. The player uses 16:9
as default.
Use the up or down cursor to scroll to this section
and press ENTER to enter this setup screen.
TV Aspect
7 System Setup (IV) - TV Aspect
ENTER