Why can old films be in full HD or 4K quality today when in the times they were produced that screen resolution didn't exist? - Quora

Why are really old 2k movies easier to upscale to 4k or even 8k than more recent 2k movies? - Quora

What's the difference between a 1920x1200 and 1920x1080 resolution? Which is better? - Quora

Why can old films be in full HD or 4K quality today when in the times they were produced that screen resolution didn't exist? - Quora

Why does a physical film have such a higher resolution than most digital videos? - Quora

Why do some DVDs not fill the screen? - Quora

Why are movies not full screen? - Quora

In the Netflix basic plan, is the resolution 720p or 480p? - Quora

Why is the Roku 4K Express screen blurry? - Quora

Why can old films be in full HD or 4K quality today when in the times they were produced that screen resolution didn't exist? - Quora

Why does one of my videos that I recorded in 4k look like it has low quality? - Quora

Why can old films be in full HD or 4K quality today when in the times they were produced that screen resolution didn't exist? - Quora

Is it an issue that our current movies are mastered at 1080p or 4K when screen resolutions keep increasing? - Quora

How come old films are available as HD videos nowadays? - Quora

How are they able to upscale old movies to 4k if the cameras back then did not record at that resolution? - Quora