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PGX at a glance
PGX
These formats persist in engineering, compression research, and conversion-tool contexts where simple sample storage or adjunct technical representation is useful.
M2V at a glance
M2V
The .m2v extension became the conventional identifier for demultiplexed MPEG-2 video elementary streams during the DVD authoring era, when tools separated video from program streams for independent processing.
Format comparison
| Feature | PGX | M2V |
|---|---|---|
| File type | Image | Video |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2000 | 1995 |
| Inventor | ISO/IEC (JPEG 2000 committee) | Moving Picture Experts Group (MPEG) |
| Status | active | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Supported |
When to use each format
When to use PGX
- Your source file is already in PGX.
- Preserve source expectations before exporting to M2V.
- PGX is commonly used in image workflows.
When to use M2V
- Your target workflow expects M2V.
- Improve delivery compatibility with M2V.
- M2V is commonly used in video workflows.
FAQs
Why convert PGX to M2V?
DVD authoring video preparation, broadcast MPEG-2 processing where audio is handled as a separate stream, and MPEG-2 encoding pipelines.
What changes when converting PGX to M2V?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to M2V adds layer support. Moving to M2V adds streaming delivery.
What should I review after converting PGX to M2V?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.