: This indicates the resolution is 4K Ultra High Definition (UHD) .

: Checking if a PC, Media Player, or 4K TV can handle high-bitrate (90 Mbps) playback without stuttering.

Since this file is hosted on third-party file-sharing sites and is part of a split RAR archive, ensure you use updated antivirus software before opening, as multi-part archives from unknown sources can sometimes carry security risks.

: This typically refers to the video bitrate (90 Mbps) or a specific reference standard used for testing the quality of UHD encoders or satellite transponders.

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