DVD Resolution isn't displayed, because it is supposed to be standard.
No it is not standard, since you have NTCS and PAL, both which supports 4 different resolutions (8 total). If you do not know if the DVD is PAL or NTSC and you want to find out which one it is, one could look at the resolution and the framerate. For bluray discs the movie can be ether 720p or 1080p i think (don't have a bluray reader myself)?
Rendered resolution, this has nothing to do with the file data, so it has nothing to do with this dialog.
I agree to some extent; But since you don't have any information regarding the displayed size of the video, maybe the default aspect ratio would be a more realistic feature in that case. Since many videos have aspect ratios that doesn't correspond to the aspect ratio of the video stream. (placed under Codec Details or directly under Aspect Ratio in the video drop down menu so one can see which aspect ratio that is choosen for the moment, by the way that menu lacks the anamorphic aspect ratio of 2.35-40:1)
Bitrate of audio and video are already in the codec part.
I don't agree; This only works if you have a format that actually displays the information of the video and audio in the codec details, which it doesn't for DVD's for example. Also for most videos you have variable bitrate which requires one to see realtime bitrates to be accurate, even some cheap dvd players i have seen can display realtime video and audio bitrates on screen.
I have some basic programming skills myself which says that displaying some basic information should be easy, but when it comes to media and entire programs which is something that i haven't had much experience with, it is not always as easy to understand which features requires more work than others.
Thanks for the good response!