Sony DVD Rom/DVD Video - Manual (Page 16)

16
2. DVD-Video
Edge TV Safe Margin Title Safe Margin
PAL Left / Right Each 36 Pixels 72 Pixels
Top / Bottom Each 28 Pixels 57 Pixels
NTSC Left / Right Each 36 Pixels 72 Pixels
Top / Bottom Each 24 Pixels 48 Pixels
For Menus in 16:9 format please contact Sony DVD Center Europe
Margins in Pixels for TV and Title Safe areas:
PAL NTSC
384
PAL / NTSC 75 % colour bar RGB values (Gamma Corrected) :
White Yellow Cyan Green Magenta Red Blue Black
Range
PAL / NTSC
R 0-255
G 0-255 255 / 191 191 0 0 191 191 0 0
B 0-255 255 / 191 191 191 191 0 0 191 0
255 / 191 0 191 191 191 0 0 0
2.3.14 Colour Depth
A 24bit colour palette can be used, as long as NTSC/PAL
colour limits are not exceeded. CCIR-601 (or ITU-R 601 as it
is known now) recommends that the nominal range for RGB
signals should be 16-235 on a scale of 0-255. The extra
headroom from 0-15 and 236-255 is occasionally needed to
accommodate overshoot and other out of bounds signals
that can be generated by analog video processing. A good reference for colours that work well with NTSC and
PAL colour systems are their 75% Colour Bar test signals.
For conservative design, the RGB values of these Colour
Bars can be used as the upper/lower limits for their respec-
tive colours.
2.3.13 Safe Area
DVD Menus should be designed in accordance to standard
Title Safe and TV Safe areas. All graphic elements of
significance should be within TV Safe and all text should be
within Title Safe. TV Safe is a 5% margin from the edges of
the video image and Title Safe is 10% from the edges. These areas should be applicable in the last stage shown
above. This translates to the following margins for PAL and
NTSC: