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PAM in het kort
PAM
PBM, PGM, PPM, PNM, and later PAM come from the tool-centric tradition of keeping image interchange formats easy to parse, script, and transform.
PMD in het kort
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.
Formaatvergelijking
| Kenmerk | PAM | PMD |
|---|---|---|
| File type | Image | Video |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2000 | 2004 |
| Inventor | Jef Poskanzer / Netpbm lineage | Sony |
| Status | active | legacy |
| Transparency | Niet ondersteund | Niet ondersteund |
| Animation | Niet ondersteund | Niet ondersteund |
| Primary use cases |
|
|
| Layer support | Niet ondersteund | Niet ondersteund |
| Camera raw data | Niet ondersteund | Niet ondersteund |
| HDR support | Niet ondersteund | Niet ondersteund |
| Streaming ready | Niet ondersteund | Ondersteund |
Wanneer je elk formaat gebruikt
When to use PAM
- Your source file is already in PAM.
- Preserve source expectations before exporting to PMD.
- PAM is commonly used in image workflows.
When to use PMD
- Your target workflow expects PMD.
- Improve delivery compatibility with PMD.
- PMD is commonly used in video workflows.
Veelgestelde vragen
Why convert PAM to PMD?
Convert to PMD when maintaining compatibility with a Sony-centered production workflow, preserving source media from a professional ingest system, or migrating archived broadcast assets that were originally wrapped for structured editorial exchange.
What changes when converting PAM to PMD?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to PMD adds streaming delivery.
What should I review after converting PAM to PMD?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.