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PFM Raw at a glance
PFM Raw
PFM persists from the era when HDR imaging, rendering research, and tone-mapping workflows needed straightforward file carriers for floating-point image data long before mainstream consumer HDR delivery formats matured.
RealVideo at a glance
RealVideo
RealNetworks released the first RealVideo codec in February 1997 as part of RealPlayer 5, pioneering internet video streaming when bandwidth was extremely limited and competing with Microsoft's Windows Media and Apple's QuickTime Streaming.
Format comparison
| Feature | PFM Raw | RealVideo |
|---|---|---|
| File type | Image | Video |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1998 | 1997 |
| Inventor | PBRT / Paul Debevec community | RealNetworks |
| Status | active | legacy |
| 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 | Supported | Not supported |
| Streaming ready | Not supported | Supported |
When to use each format
When to use PFM Raw
- Your source file is already in PFM Raw.
- Preserve source expectations before exporting to RealVideo.
- PFM Raw is commonly used in image workflows.
When to use RealVideo
- Your target workflow expects RealVideo.
- Improve delivery compatibility with RealVideo.
- RealVideo is commonly used in video workflows.
FAQs
Why convert PFM Raw to RealVideo?
Convert to or from RealVideo when recovering streaming-era web media, preserving early RealNetworks distributions, or migrating archived RM and RMVB collections into current containers such as MP4.
It is primarily a legacy-access format for old internet-video libraries rather than a target for new delivery.
What changes when converting PFM Raw to RealVideo?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to RealVideo adds layer support. Moving to RealVideo removes HDR content. Moving to RealVideo adds streaming delivery.
What should I review after converting PFM Raw to RealVideo?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.