If you use open-source players like VLC or MPC-HC, enable "Post-processing" in the settings. This applies a live filter to smooth out the mosaic squares.
Sometimes, the "extra quality" is already there, but your player isn't showing it. ds ssni987rm reducing mosaic i spent my s extra quality
What do you currently have access to (Photoshop, Topaz, etc.)? Is the goal artistic restoration or forensic clarity ? If you use open-source players like VLC or