Recent updates to Adobe Premiere Pro (2024+) have improved native MKV support. Try dragging the file directly into your project first; if you get an "Unsupported Format" error, proceed with the remuxing step above. Summary of File Sizes

If the MKV contains a variable frame rate (common in gameplay or screen recordings) or a codec your system doesn't support, you may need to fully transcode it.

When preparing your backup, keep in mind standard sizes for different formats: : Often 40–60 GB. Blu-Ray Rips : Typically 5–9 GB. DVD Backups : Usually 700 MB – 1.4 GB. Process & Best Practices Used for Movie Backups / Plex