Superman & Lois S02e15 Ffmpeg -

ffmpeg -i "Superman.and.Lois.S02E15.mkv" -c copy "Superman.and.Lois.S02E15.mp4" Good balance of quality/size:

1. Remux (no quality loss, just change container) Keep original video/audio streams, fix container issues: superman & lois s02e15 ffmpeg