Runco 1080p Owner's Operating Manual page 76

Operation
Table 4-1. Aspect Ratio Settings
Remote
Aspect Ratio Control
Key
Anamorphic ANA
Standard 4:3 4X3
Letterbox LET
BOX
16:9 Image on
16:9 Screen (Display)
4:3 Image, stretched to fill
16:9 Screen (Display)
4:3 Image on
16:9 Screen (Display)
4:3 Image on
16:9 Display
(Letterbox aspect ratio)
64 Runco VX-44d/-55d Owner's Operating Manual
Description
Select Anamorphic to view
16:9 DVDs and HDTV
programs in their native
aspect ratio.
4:3 images are stretched
horizontally to fit a 16:9
screen.
Standard 4:3 scales the input
signal to fit in the center of
the 16:9 screen. 4:3 is the
aspect ratio used by
computer monitors, standard
television programming and
most VHS video cassettes.
Letterbox mode scales
(zooms in on) a 4:3 image
linearly (by the same amount
on all sides) to fill a 16:9
display.
Letterbox is best suited for
viewing LaserDisc movies or
non-anamorphic DVDs on a
16:9 screen.