If your interest stems from seeing "Topic" associated with music on YouTube, this refers to :
: A proper MP4 allows for advanced metadata, such as artist name, song title, and album art, which allows media players like MusicBee to organize files effectively.
If you are looking to create or edit these files, a "proper" feature set in editing software should include: musboomp4
: These are created automatically by YouTube when a music distributor uploads your audio.
What are the correct settings for uploading mp4 videos? - Facebook If your interest stems from seeing "Topic" associated
: Modern MP4 containers are designed for seamless streaming over the internet, which is why they are the preferred format for platforms like YouTube.
: The ability to demux (separate) audio from video, edit it (e.g., mastering), and re-sync it perfectly. - Facebook : Modern MP4 containers are designed
: They typically feature the album's cover art as a static image while the audio plays. Essential Editing Features