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MPEG-2 at a glance
MPEG-2
MPEG-2 was developed as the successor to MPEG-1, scaling video quality from VHS-level to broadcast and studio levels. It underpinned the DVD-Video standard (1996) and digital broadcast systems worldwide (DVB, ATSC, ISDB).
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 | MPEG-2 | PMD |
|---|---|---|
| File type | Video | Video |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1995 | 2004 |
| Inventor | Moving Picture Experts Group (MPEG) | Sony |
| Status | active | legacy |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Multitrack support | Not supported | Not supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Supported | Supported |
When to use each format
When to use MPEG-2
- Your source file is already in MPEG-2.
- Preserve source expectations before exporting to PMD.
- MPEG-2 is commonly used in video workflows.
When to use PMD
- Your target workflow expects PMD.
- Improve delivery compatibility with PMD.
- PMD is commonly used in video workflows.
FAQs
Why convert MPEG-2 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 MPEG-2 to PMD?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting MPEG-2 to PMD?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.