Time limit for webms?

Wallet After Summer Sale -
The End wasn't The End - Found a new home after the great exodus of 2012
Fine Arts - Two hundred uploads with a score of over a hundred (Safe/Suggestive)

It's ok to be white
A recent upload of mine, >>1564796 was deleted for being too long, a rule that was never made clear.

What is the limit for official content?

I'd just like to get something specific, so I can keep my content in line with the rules, and alert a mod when someone else breaks this new rule.
The Smiling Pony
Magnificence - Artist with 100+ Safe/Suggestive images with over 100 upvotes, and 5+ Questionable/Explicit images with over 350 upvotes
My Little Pony - 1992 Edition
The Magic of Friendship Grows - For helping others attend the 2020 Community Collab
Friendship, Art, and Magic (2020) - Took part in the 2020 Community Collab
The Power of Love - Given to a publicly verified artist with an image under their artist’s tag that has reached 1000 upvotes
Dream Come True! - Participated in the MLP 9th Anniversary Event
Toola Roola - For helping others attend the 2019 Community Collab
Friendship, Art, and Magic (2019) - Celebrated Derpibooru's seventh year anniversary with friends.
Condensed Milk - State-Approved Compensation
Friendship, Art, and Magic (2018) - Celebrated Derpibooru's six year anniversary with friends.

I can't recall why it's not on the rules page yet, but the gist of it is:
1- Official stuff over 30 seconds long is a no
2- Official stuff with audio is a no

Official as in episodes or movie (not including trailers and whatnot). Exceptions to #2 are for very short sounds, like an explosion, boop, Fluttershy "yay", etc.

Yes it sucks, but a- it's an image booru, not a video booru, and b- Lawyers love ganking sites for video content, particularly if there's voice or music.
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Ministry of Image - Fanfiction Printing

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