Convert anything, at global scale.
200+ formats and automation APIs that feels instant.
CONVERT
From
To
Drop files or choose a source
Upload multiple files at once, mix formats, and fine-tune every conversion with format-aware settings.
Max 2GB per file · Drag & drop ready · Mixed file types welcome
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.
3G2 at a glance
3G2
Convert to 3G2 when preserving compatibility with legacy CDMA handset recordings, telecom media archives, or workflows that explicitly expect 3GPP2-style mobile video.
It is useful for migration and recovery of old phone clips.
For current playback and sharing, MP4 is almost always the better destination.
Format comparison
| Feature | MEF | 3G2 |
|---|---|---|
| File type | Image | Video |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | raw | depends |
| File size characteristics | large | large |
| Compatibility | limited | moderate |
| Editability | high | limited |
| Created year | 2005 | 2004 |
| Inventor | Mamiya | 3GPP2 |
| Status | proprietary | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | strong | moderate |
| Metadata handling | rich | moderate |
| Delivery profile | limited | strong |
| Workflow fit | source | delivery |
| Layer support | Not supported | Not supported |
| Camera raw data | Supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use MEF
- capture ingest
- editing
- web or print delivery
- Preserve capture-stage image data for later interpretation.
When to use 3G2
- editing
- mastering
- streaming delivery
- Useful for long-tail mobile-media compatibility.
FAQs
Why convert MEF to 3G2?
Convert to 3G2 when preserving compatibility with legacy CDMA handset recordings, telecom media archives, or workflows that explicitly expect 3GPP2-style mobile video.
It is useful for migration and recovery of old phone clips.
For current playback and sharing, MP4 is almost always the better destination.
What changes when converting MEF to 3G2?
This conversion changes how the format behaves in downstream tools and delivery environments.
Quality profile changes from raw in MEF to depends in 3G2. Editability profile changes from high in MEF to limited in 3G2. Compatibility profile changes from limited in MEF to moderate in 3G2. Archival profile changes from strong in MEF to moderate in 3G2. Metadata profile changes from rich in MEF to moderate in 3G2. Delivery profile changes from limited in MEF to strong in 3G2. Workflow profile changes from source in MEF to delivery in 3G2.
Moving to 3G2 removes camera raw data.
What should I review after converting MEF to 3G2?
Check the exported file for Mostly legacy today.; Recipients usually prefer conversion into more current containers..