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FLV at a glance
FLV
Convert to FLV when dealing with Flash-era website archives, old courseware, or inherited streaming libraries that still preserve their media in Flash Video form.
It is useful for recovery and compatibility with historical systems.
For any new online distribution, MP4 or WebM are the correct modern 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 | FLV | 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 | 2002 | 2005 |
| Inventor | Macromedia / Adobe | 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 | Supported | Not supported |
When to use each format
When to use FLV
- editing
- mastering
- streaming delivery
- Major historical relevance in web video.
When to use MEF
- capture ingest
- editing
- web or print delivery
- Preserve capture-stage image data for later interpretation.
FAQs
Why convert FLV 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 FLV to MEF?
This conversion changes how the format behaves in downstream tools and delivery environments.
Quality profile changes from depends in FLV to raw in MEF. Editability profile changes from limited in FLV to high in MEF. Compatibility profile changes from moderate in FLV to limited in MEF. Archival profile changes from moderate in FLV to strong in MEF. Metadata profile changes from moderate in FLV to rich in MEF. Delivery profile changes from strong in FLV to limited in MEF. Workflow profile changes from delivery in FLV to source in MEF.
Moving to MEF adds camera raw data. Moving to MEF removes streaming delivery.
What should I review after converting FLV 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..