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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.
NEF at a glance
NEF
NEF spans the long Nikon digital-camera era, from early DSLRs through modern mirrorless bodies, which is why its compatibility history matters so much in archive and editing workflows.
Format comparison
| Feature | RealVideo | NEF |
|---|---|---|
| File type | Video | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1997 | 1999 |
| Inventor | RealNetworks | Nikon |
| Status | legacy | proprietary |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Supported | Not supported |
| Camera raw data | Not supported | Supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Supported | Not supported |
When to use each format
When to use RealVideo
- Your source file is already in RealVideo.
- Preserve source expectations before exporting to NEF.
- RealVideo is commonly used in video workflows.
When to use NEF
- Your target workflow expects NEF.
- Improve delivery compatibility with NEF.
- NEF is commonly used in image workflows.
FAQs
Why convert RealVideo to NEF?
Convert to NEF when preserving Nikon originals or maintaining a workflow that expects Nikon raw files.
It is ideal for archive masters and non-destructive photo editing with maximum capture latitude.
What changes when converting RealVideo to NEF?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to NEF removes layer support. Moving to NEF adds camera raw data. Moving to NEF removes streaming delivery.
What should I review after converting RealVideo to NEF?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.