[krick]

Awesome. It would be interesting to learn why they even thought it is a good idea. Content-agnostic containers may make sense for video, but for the vast majority of use-cases a "video" is in fact a complex bundle of (several) video, audio, metadata tracks, so the "container" does much heavier lifting than specifying codec details and some metadata.

[jmalicki]

Why would they want different container formats? No point in having multiple different metadata specs.