Is standard broadcast 525i or 480i? (1 Viewer)

[MarkHastings]

Yeah, the only way I can pull files off of my DVD recorder is to record at CBR instead of VBR.

 

[Allan Jayne]

Digital video takes so many samples per scan line horizontally (704, 1920, etc.) using a corresponding clock rate. Analog video does not have such a clock rate. but rather has a continuous waveform that represents dark to light transitions (or red to cyan content transitions for the Pr subsignal, etc.).

Degradation of even lower resolution material such as VHS will occur during digitizing using a 352w x 480h "resolution" because the horizontal sampling occurs at a pitch of 1/352'nd the screen width while the original analog video may have waveform peaks and valleys at other than 1/352'nd screen width increments.

 

[ChrisWiggles]

That is true, except that there really isn't much analog video anymore, pretty much everything you get in the home has been digitized, which was my shortcut there. The "all video" was admittedly misleading there. All video that's been digitized is what I should have said.

I haven't touched an analog video format in many years, so perhaps I'm too sheltered