bigloverofcoffee69 a newer video codec that compresses better than the the older alternatives that are currently in widespread use. hardware with support for av1 has been starting to become more readily available recently and quest 3 will probably be the first standalone headset to support it.
it allows for higher quality at the same bitrate/file size (or put differently... lower bitrate/file size for the same quality).
at this point its about our only hope for getting decent quality 8k from slr.