Methods and devices are provided for use in streaming a
Virtual Reality [VR] video to a VR rendering device. The VR video may be represented by a plurality of streams each providing different image data of a scene. The VR rendering device may render a selected view of the scene on the basis of a first subset of streams. A second subset of streams may then be identified which provides image data of the scene which is spatially adjacent to the image data of the first subset of streams, e.g., on the basis of
spatial relation data. Having identified the second subset of streams, a caching of the second subset may be effected in a network cache which is comprised downstream of the one or more
stream sources in the network and upstream of the VR rendering device. The second subset of streams may effectively represent a ‘
guard band’ for the image data of the first subset of streams. By caching this ‘
guard band’ in the network cache, the
delay between the requesting of one or more streams from the second subset and their
receipt by the VR rendering device may be reduced.