-reducing Mosaic-ssis-586 .720p-ds-.mp4 ((top))

: This often stands for "DeepStyle" or a similar AI-upscaling/restoration method used to enhance visual quality while reducing mosaic visibility.

: -DS- might indicate that the file is a "Dual Subtitle" or could refer to a specific encoding or quality setting. Without more context, it's hard to say for sure. -Reducing Mosaic-SSIS-586 .720p-DS-.mp4

Most probable corrected interpretation: