190729_1802_720p_4000k_98623782.mp4 -

The string 190729_1802_720P_4000K_98623782.mp4 encodes specific metadata about the video's origin and quality:

: The capture or upload timestamp (July 29, 2019). 720P : The original vertical resolution. 4000K : The encoding bitrate (4000 kbps). 190729_1802_720P_4000K_98623782.mp4

: A unique identifier for the video source on the Bilibili platform. The string 190729_1802_720P_4000K_98623782

This dataset is widely used for training and evaluating models because it provides high-quality ground truth paired with compressed "real-world" versions [1, 2]. 190729_1802_720P_4000K_98623782.mp4