: Likely refers to Rec. 2020 (BT.2020), which is the ITU-R recommendation for Ultra High Definition Television (UHDTV) parameters, including its wide color gamut. 720 : Refers to 720p resolution (
Strings like this are frequently used in file-sharing communities or internal archiving systems to quickly describe the exact technical specifications of a video file. In this case, it likely refers to a 720p HD video file encoded with the HEVC (H.265) codec using the Rec. 2020 color space at 10-bit depth, compressed within a .7z archive. MSSJSSHDTVHEVC2020720107z
If you intended for this to be an essay prompt for a specific class or project, could you please clarify the (e.g., Computer Science, Media Studies) or provide the full assignment details ? : Likely refers to Rec