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JPEG 2000 at a glance
JPEG 2000
JPX reflects the branch of JPEG 2000 that pushed beyond a simple still-image wrapper into more expressive composition and metadata scenarios for professional and institutional imaging.
PMD at a glance
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.
Format comparison
| Feature | JPEG 2000 | PMD |
|---|---|---|
| File type | Not available | Not available |
| Extensions |
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| MIME type |
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| Compression / quality | Not available | Not available |
| File size characteristics | Not available | Not available |
| Compatibility | Not available | Not available |
| Editability | Not available | Not available |
| Created year | Not available | Not available |
| Inventor | Not available | Not available |
| Status | Not available | Not available |
| Transparency | Not available | Not available |
| Animation | Not available | Not available |
| Primary use cases |
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| Common software |
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| Archival suitability | Not available | Not available |
| Metadata handling | Not available | Not available |
| Delivery profile | Not available | Not available |
| Workflow fit | Not available | Not available |
| Layer support | Not available | Not available |
| Camera raw data | Not available | Not available |
| HDR support | Not available | Not available |
| Streaming ready | Not available | Not available |
When to use each format
When to use JPEG 2000
- capture ingest
- editing
- web or print delivery
- Richer packaging than baseline JP2.
When to use PMD
- editing
- mastering
- streaming delivery
- Integrates Sony-specific production metadata into the recording workflow.
FAQs
Why convert JPEG 2000 to PMD?
Choose PMD as target 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 JPEG 2000 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 should I review after converting JPEG 2000 to PMD?
After conversion, review these destination checks: Open converted output in Sony PlayMemories (legacy) and verify behavior on real samples; Compare output against the expected depends quality profile; No public specification or documentation.
How can I keep quality stable in JPEG 2000 to PMD conversion?
Run representative samples, keep settings deterministic, and monitor these risks: Essentially unreadable outside Sony's own software ecosystem; No public specification or documentation; Validate destination compatibility before large-batch conversion.