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Originally Posted by Jamaika
What surprises me when encoding VVC?
When I convert material already processed by HEVC, the VVC codec encodes much faster than source. However, do I see these differences in quality video for QP32? No
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Do you mean you aren't seeing a subjective difference in quality at QP32 between HEVC and VVC?
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For me the big surprise is the AV1 MPEG-4.
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What about it? There was a mapping for VP9 to MPEG-4 IIRC.
The MPEG-4 file format and systems layer are very mature with a huge ecosystem around it, and without codec-specific patent issues. The QuickTime file format that it was based on was extremely flexible. It's hard to imagine what value there would be in a whole new file format or systems layer that couldn't be better within or as extensions to MPEG-4.
For professional content, it's really all MPEG-4. MKV is the other format I see used some, but mainly for personal use, and I don't think there is anything MKV can do that MPEG-4 can't; it's more about the installed base of authoring tools and players for MKV. A generic MPEG-4 player wouldn't have the UI to use all the tracks and other info that could be in a MKV-parity MPEG-4 file, so having a different extension is helpful.