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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.
PGX at a glance
PGX
Convert to PGX when a technical imaging or codec workflow expects grayscale component data in a simple specialist format.
It is useful for research, testing, and standards-oriented image processing.
Format comparison
| Feature | FLV | PGX |
|---|---|---|
| File type | Video | Image |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | depends | depends |
| File size characteristics | large | medium |
| Compatibility | moderate | broad |
| Editability | limited | moderate |
| Created year | 2002 | 2000 |
| Inventor | Macromedia / Adobe | ISO/IEC (JPEG 2000 committee) |
| 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 | 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 PGX
- capture ingest
- editing
- web or print delivery
- Useful for technical sample interchange and tooling.
FAQs
Why convert FLV to PGX?
Convert to PGX when a technical imaging or codec workflow expects grayscale component data in a simple specialist format.
It is useful for research, testing, and standards-oriented image processing.
What changes when converting FLV to PGX?
This conversion changes how the format behaves in downstream tools and delivery environments.
Size profile changes from large in FLV to medium in PGX. Editability profile changes from limited in FLV to moderate in PGX. Compatibility profile changes from moderate in FLV to broad in PGX.
Moving to PGX removes streaming delivery.
What should I review after converting FLV to PGX?
Check the exported file for Not intended for mainstream publishing or editing.; Sparse everyday application support..