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SR2 at a glance
SR2
Early Sony raw formats reflect the transitional period in which Sony was still establishing its photography ecosystem and raw compatibility story.
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 | SR2 | RealVideo |
|---|---|---|
| File type | Image | Video |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2003 | 1997 |
| Inventor | Sony | RealNetworks |
| Status | proprietary | legacy |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Supported |
| Camera raw data | Supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Supported |
When to use each format
When to use SR2
- Your source file is already in SR2.
- Preserve source expectations before exporting to RealVideo.
- SR2 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 SR2 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 SR2 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 camera raw data. Moving to RealVideo adds streaming delivery.
What should I review after converting SR2 to RealVideo?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.