MistyLaraCarrara opened this issue on Jun 04, 2012 · 15 posts
ShawnDriscoll posted Mon, 04 June 2012 at 8:51 PM
For videos, just the vertical line count is used for resolution. CD-I (mpg1) is 480, DVD (mpg2) is also 480, Bluray is 720 and 1080, etc.
The horizontal pixel count seems to be assumed because of the 16x9 or 4x3 screen ratios. Screens will auto-stretch everything vertically/horizontally if you let them, so that adds to the confusion.
In general, CD-I is 640x480.
DVD is 740x480.
Bluray is 1280x720 and 1920x1080.
HDDVD is 1440x1080.
But your screen ratio and video player is what really controls most of this.