What does Playback buffer mean?
A playback buffer holds media received ahead of the moment it is shown. It gives the player a cushion against short delivery gaps. A larger cushion can improve continuity, but a live programme will normally be farther behind its source.
Why it matters
The buffer is different from a router's traffic queue and from permanently downloading a whole programme. Its useful size depends on player support, available media and viewing priorities. Begin with supported defaults and change one setting at a time. More buffering cannot restore an offline feed, add a missing codec or overcome a connection that remains slower than the media demand.
A practical example
A player with several seconds ready may survive a brief wireless interruption. A low-delay session with little stored media can pause during the same interruption.
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Related terminology: Playback access token, Player account profile.
For practical setup and troubleshooting, browse the journal or support guides.