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ORA at a glance
ORA
OpenRaster emerged from the libre graphics community as a practical answer to the lack of a clean open interchange format for layered raster artwork.
MDC at a glance
MDC
Digital photography fragmented into many manufacturer-specific raw formats because camera makers optimized for their own sensors, metadata, and software ecosystems rather than for one shared public raw standard.
Format comparison
| Feature | ORA | MDC |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2006 | 2003 |
| Inventor | Libre Graphics community | Minolta (now Sony) |
| Status | active | proprietary |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Supported | Not supported |
| Vector scaling | Not supported | Not supported |
| Camera raw data | Not supported | Supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use ORA
- Your source file is already in ORA.
- Preserve source expectations before exporting to MDC.
- ORA is commonly used in image workflows.
When to use MDC
- Your target workflow expects MDC.
- Improve delivery compatibility with MDC.
- MDC is commonly used in image workflows.
FAQs
Why convert ORA to MDC?
Convert to MDC when preserving an older proprietary raw archive or interfacing with a workflow that still expects that format.
It is mainly useful for historical compatibility and migration.
What changes when converting ORA to MDC?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to MDC removes layer support. Moving to MDC adds camera raw data.
What should I review after converting ORA to MDC?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.