[swyx]

i thought this as well explained. title a bit clickbaity, but it got me to click.

i'm interested in learning more about the mp4 format. where can I read more? is there a canonical read that everyone but me knows about?

OP seems like he has some kind of file explorer UI for it - also interested in that

[99112000]

MP4 Inspector (Windows)

The MP4 format is fundamentally pretty easy, at least the box structure. But there have been so many standards that overlap that the MP4 format is also really messy. Aaand you need to pay to get access to the specs of the format..

[nightpool]

"This is clickbait-y enough that I fell for it" is uh. Not exactly an endorsement? It seems like kind of the opposite of what you'd want to encourage?

[rendall]

I didn't like the title either. On the other hand, I doubt the fellow expected much of an audience but hit HN's front page. Also, the article is pretty great