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MTS at a glance
MTS
Convert to MTS when preserving AVCHD camera originals, maintaining ingestion compatibility, or exchanging footage in a camera-native format.
It is appropriate for home-video capture archives and certain editing pipelines.
For downstream delivery and easy playback, MP4 or MOV are usually better targets.
MEF at a glance
MEF
Convert to MEF when preserving Mamiya camera originals or maintaining compatibility with medium-format photographic workflows that still expect that raw format.
It is appropriate for archive masters and non-destructive editing.
Format comparison
| Feature | MTS | MEF |
|---|---|---|
| File type | Video | Image |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | depends | raw |
| File size characteristics | large | large |
| Compatibility | moderate | limited |
| Editability | limited | high |
| Created year | 2006 | 2005 |
| Inventor | Sony and Panasonic | Mamiya |
| Status | active | proprietary |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | moderate | strong |
| Metadata handling | moderate | rich |
| Delivery profile | strong | limited |
| Workflow fit | delivery | source |
| Layer support | Not supported | Not supported |
| Camera raw data | Not supported | Supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use MTS
- editing
- mastering
- streaming delivery
- Strong source-provenance signal for camera footage.
When to use MEF
- capture ingest
- editing
- web or print delivery
- Preserve capture-stage image data for later interpretation.
FAQs
Why convert MTS to MEF?
Convert to MEF when preserving Mamiya camera originals or maintaining compatibility with medium-format photographic workflows that still expect that raw format.
It is appropriate for archive masters and non-destructive editing.
What changes when converting MTS to MEF?
This conversion changes how the format behaves in downstream tools and delivery environments.
Quality profile changes from depends in MTS to raw in MEF. Editability profile changes from limited in MTS to high in MEF. Compatibility profile changes from moderate in MTS to limited in MEF. Archival profile changes from moderate in MTS to strong in MEF. Metadata profile changes from moderate in MTS to rich in MEF. Delivery profile changes from strong in MTS to limited in MEF. Workflow profile changes from delivery in MTS to source in MEF.
Moving to MEF adds camera raw data.
What should I review after converting MTS to MEF?
Check the exported file for Many are vendor-specific and poorly documented publicly.; Compatibility often depends on decoder support in tools such as LibRaw, Adobe Camera Raw, or vendor software.; They are source formats, not publication-ready outputs..