If you are looking for a "good piece" of software to handle .mp4 files, popular free recommendations include:
Standardizing files to S01E01 (adding the "E") is often necessary for media servers like Plex or Jellyfin to recognize and index them correctly.
If a file like Ripley S0101.mp4 isn't appearing in your library, users frequently recommend renaming it to include the "E" for "Episode". 🛠️ Video Tools & Software
[Recommendation] LosslessCut is amazing for quick/easy video cuts