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PMD in sintesi
PMD
The .pmd extension appeared in Sony's prosumer and professional recording device output alongside other Sony-proprietary formats like MQV, serving as a companion metadata or media descriptor file.
JPF in sintesi
JPF
JPEG 2000 arrived as a major standards effort to improve on classic JPEG, but its practical adoption concentrated in specialist domains rather than in the universal browser-and-camera role held by JPEG.
Confronto tra formati
| Caratteristica | PMD | JPF |
|---|---|---|
| File type | Video | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2004 | 2000 |
| Inventor | Sony | Joint Photographic Experts Group |
| Status | legacy | active |
| Transparency | Non supportato | Non supportato |
| Animation | Non supportato | Non supportato |
| Primary use cases |
|
|
| Layer support | Non supportato | Non supportato |
| Camera raw data | Non supportato | Non supportato |
| HDR support | Non supportato | Non supportato |
| Streaming ready | Supportato | Non supportato |
Quando usare ciascun formato
When to use PMD
- Your source file is already in PMD.
- Preserve source expectations before exporting to JPF.
- PMD is commonly used in video workflows.
When to use JPF
- Your target workflow expects JPF.
- Improve delivery compatibility with JPF.
- JPF is commonly used in image workflows.
Domande frequenti
Why convert PMD to JPF?
Convert to JPF when a standards-based JPEG 2000 workflow explicitly expects that container variant.
It is useful in specialist preservation and institutional imaging systems.
What changes when converting PMD to JPF?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to JPF removes streaming delivery.
What should I review after converting PMD to JPF?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.