Prefetching obtains content or information before the user immediately needs it. A player may use this idea to prepare media, guide information or interface images, depending on its design. It can reduce some waiting when predictions are useful, but it consumes resources and cannot guarantee that a later request will remain valid or available.
A practical example
An application may load details for nearby catalogue items while a viewer browses, making the next screen appear more quickly. Those background requests can still share network and memory resources with active playback or other applications on the same device.
A common misunderstanding
Do not assume that every background request is essential or that more prefetching always improves viewing. The benefit depends on application design, resource limits and whether the prepared content is actually used.
Related terms
Stable technical definition. Editorial approach