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3G2 at a glance
3G2
3G2 belongs to an era when mobile ecosystems were more fragmented across standards families, carriers, and handset capabilities.
ICB at a glance
ICB
The Truevision line grew out of EPICenter-era PC graphics boards, and several board names ended up surviving as filename extensions even when the underlying raster structure stayed close to the wider TGA family.
Format comparison
| Feature | 3G2 | ICB |
|---|---|---|
| File type | Video | Image |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | depends | depends |
| File size characteristics | large | medium |
| Compatibility | moderate | broad |
| Editability | limited | moderate |
| Created year | 2004 | 1991 |
| Inventor | 3GPP2 | Truevision |
| Status | active | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | moderate | moderate |
| Metadata handling | moderate | moderate |
| Delivery profile | strong | strong |
| Workflow fit | delivery | delivery |
| Layer support | Not supported | Not supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use 3G2
- editing
- mastering
- streaming delivery
- Useful for long-tail mobile-media compatibility.
When to use ICB
- capture ingest
- editing
- web or print delivery
- Important for long-tail compatibility with historic Truevision-era assets.
FAQs
Why convert 3G2 to ICB?
Choose ICB as target when recovering historical raster assets from Truevision-era systems or normalizing old image archives before moving them into PNG, TIFF, or another contemporary format.
What changes when converting 3G2 to ICB?
Convert to ICB when recovering historical raster assets from Truevision-era systems or normalizing old image archives before moving them into PNG, TIFF, or another contemporary format. It is mainly a compatibility target for legacy graphics collections.
What should I review after converting 3G2 to ICB?
After conversion, review these destination checks: Open converted output in ImageMagick and verify behavior on real samples; Compare output against the expected depends quality profile; Weak modern software recognition compared with ordinary.tga files.
How can I keep quality stable in 3G2 to ICB conversion?
Run representative samples, keep settings deterministic, and monitor these risks: Public documentation is mostly historical or secondary; Weak modern software recognition compared with ordinary.tga files; Validate destination compatibility before large-batch conversion.