DVD Aspect Ratios (+ pixel dimensions, width x height)

    a.k.a. Examples of pixel dimensions
(approximate)
FULLSCREEN

4x3

1.33:1

(4/3=1.333...) 		NTSC 4x3 Television

35mm Academy (old)		  
1.78 WIDESCREEN

16x9

1.78:1

(16/9=1.777...)



Note:
PAL 16:9 ≈ 1.76 (e.g. 720/408)

1,360 x 768
1360 / 16 = 85
 768 / 9 =   85.333...

 768 x 1.78 = 1,367.04

1,280 x 720 (720i or 720p)

1,920 x 1,080 (1080i or 1080p)

WIDESCREEN ANAMORPHIC

aka "Scope"

35mm Film

(e.g.
" Transporter 2" ,
" Mr. & Mrs. Smith")

 

720 x 304 [2.37; close-enough value for 2.35 ]


  e.g.

War of the Worlds (2005) DVD {view sample}
source video:

720x480

displayed at:

888x480
     
       
       
       
       


 

Full Window: 720x576; Inner Window: 720x480:

720/408= 1.7647 (1.76, close enough to 1.7777 aka 1.78 aka 16x9) = PAL 16:9

960/544= 1.76 ; (1.76, close enough to 1.7777 aka 1.78 aka 16:9)