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MD at a glance
MD
Markdown was created in 2004 by John Gruber with Aaron Swartz, but the later CommonMark effort became important because the original syntax description was too ambiguous to keep implementations aligned.
3G2 at a glance
3G2
3G2 belongs to an era when mobile ecosystems were more fragmented across standards families, carriers, and handset capabilities.
Format comparison
| Feature | MD | 3G2 |
|---|---|---|
| File type | Document | Video |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | depends | depends |
| File size characteristics | medium | large |
| Compatibility | broad | moderate |
| Editability | moderate | limited |
| Created year | 2004 | 2004 |
| Inventor | John Gruber and Aaron Swartz | 3GPP2 |
| Status | active | active |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | strong | moderate |
| Metadata handling | moderate | moderate |
| Delivery profile | strong | strong |
| Workflow fit | exchange | delivery |
When to use each format
When to use MD
- authoring
- review and collaboration
- distribution
- Readable in raw plain text.
When to use 3G2
- editing
- mastering
- streaming delivery
- Useful for long-tail mobile-media compatibility.
FAQs
Why convert MD to 3G2?
Choose 3G2 as target when preserving compatibility with legacy CDMA handset recordings, telecom media archives, or workflows that explicitly expect 3GPP2-style mobile video.
What changes when converting MD 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 should I review after converting MD to 3G2?
After conversion, review these destination checks: Open converted output in older phones and verify behavior on real samples; Compare output against the expected depends quality profile; Mostly legacy today.
How can I keep quality stable in MD to 3G2 conversion?
Run representative samples, keep settings deterministic, and monitor these risks: Recipients usually prefer conversion into more current containers; Mostly legacy today; Validate destination compatibility before large-batch conversion.