Writing Tags to Files
Once you are satisfied with the metadata, click Write Tags to embed the information into the file.
Supported Containers
| Container | Writer | Details |
|-----------|--------|---------|
| MKV | mkvpropedit (bundled sidecar) | Writes title, date, director, cast, genres, season/episode, and attaches cover art |
| MP4 / M4V / MOV | ffmpeg (bundled sidecar) | Writes metadata via ffmpeg with a temp-file-rename pattern |
| MP3 / M4A | ffmpeg (bundled sidecar) | Writes audio metadata tags |
What Gets Written
- Title and year
- Description / synopsis
- Director and cast
- Genres
- Season and episode numbers (for TV)
- Embedded cover art (if poster URL or extracted frame is available)
Output Modes
Configured in Preferences > Output tab:
- Overwrite Original — Tags are written directly to the source file.
- Backup Then Tag — A
.bakcopy of the original is created before tagging. - Save Tagged Copy — A new tagged copy is saved without modifying the original.
Status Feedback
The editor shows live status: "Writing...", "Done ✓", or error details if something fails.