Is https://en.wikipedia.org/wiki/.m2ts meant?

If so and

This container format is commonly used for high definition video on Blu-ray Disc and AVCHD.

is still the case, with no move from a browser to support it, I would say it's not really a fit for caniuse.

Or do you have any links or something…?

@Schweinepriester there are about 400 radio over IP stations that broadcast in this format. Including but not limited to:

• CBC Radio One Ottowa
• Groove FM
• hr3
• The Rock 90.2
• gazeta
• Radio Parma
• super radio 89 FM

video/mp2t (and audio/mp2t) are registered as part of the MSE API bytestream format registry https://www.w3.org/TR/mse-byte-stream-format-registry/, documented further (as it pertains to MSE) at https://www.w3.org/TR/mse-byte-stream-format-mp2t/

Despite being registered there in the spec, I'm not aware* of any browsers that actually support it directly (libraries like HLS.js do TS->MP4 transmuxing internally).

*I haven't looked very hard! I landed on this issue because I was trying to find out.

It might be vaguely useful to have a page on caniuse, even if it says "no" across the board.

Edit: I'm seeing people mention Safari support{s,ed} it

Edit: I just had someone run MediaSource.isTypeSupported("video/mp2t") on Safari for me, and it returns true

Incredible, something Safari supports that no other browser does; this is worthy of a caniuse page IMO.