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CRW at a glance
CRW
Early Canon digital-camera workflows used raw formats like CRW before the later EOS raw families stabilized around CR2 and then CR3.
MNG at a glance
MNG
MNG emerged from PNG-adjacent development discussions that wanted something more capable than static PNG, but its complexity limited broad consumer adoption.
Format comparison
| Feature | CRW | MNG |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2000 | 2001 |
| Inventor | Canon | PNG / MNG developer community |
| Status | proprietary | legacy |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Vector scaling | Not supported | Not supported |
| Camera raw data | Supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use CRW
- Your source file is already in CRW.
- Preserve source expectations before exporting to MNG.
- CRW is commonly used in image workflows.
When to use MNG
- Your target workflow expects MNG.
- Improve delivery compatibility with MNG.
- MNG is commonly used in image workflows.
FAQs
Why convert CRW to MNG?
Convert to MNG when preserving historical animated PNG-family assets or interfacing with a niche workflow that still expects it.
In most modern contexts, APNG, WebP, or video are more practical targets.
What changes when converting CRW to MNG?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to MNG removes camera raw data.
What should I review after converting CRW to MNG?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.