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NS_E_WMP_PNG_UNSUPPORTED_BAD_CRC
What this HRESULT actually isolates
NS_E_WMP_PNG_UNSUPPORTED_BAD_CRC is HRESULT 0xC00D102D. It means a PNG chunk fails its integrity check; the result belongs to the skin artwork decoder and raster-file contract, not to an unspecified Player failure.
An additional test is to record the chunk type, stored CRC, calculated CRC and byte offset; that evidence is more useful than reinstalling the Player or changing several unrelated settings at once.
Why the producing component matters
Before changing state, remember that a filename extension is not sufficient evidence of image format; the decoder acts on signatures, headers, markers, chunks and decoded dimensions. A second platform rule is that a file can be valid according to a modern format specification yet use a coding option that the legacy WMP skin decoder does not implement.
Representative case: The image signature and IHDR parse, but a later IDAT or ancillary chunk has altered bytes.
How to prove the condition
- Start with the symbolic HRESULT; do not diagnose the failure from the final dialog alone.
- Record the bytes or object state that produced this condition before automatic recovery mutates it.
- Exclude a stale callback or superseded object instance as the source of this event.
- Use this deciding observation for this condition: record the chunk type, stored CRC, calculated CRC and byte offset.
- Apply the smallest supported remedy for this condition: replace the damaged PNG or regenerate it from an intact source.
Minimum useful incident record
Capture state before Player cleanup:
- Decisive check: record the chunk type, stored CRC, calculated CRC and byte offset.
- Artifact: archive member name, byte length, hash and file signature.
- State: format header fields, dimensions, bit depth and color model.
- Object identity: first invalid marker/chunk and its byte offset.
- Underlying evidence: decoder-supported coding mode versus the file’s declared mode.
- Correlation: standalone decode result outside the skin package using the same bytes.
Targeted fix
The targeted correction for this condition is to replace the damaged PNG or regenerate it from an intact source. Keep the original failing input until the same operation succeeds after one controlled change.
- Avoid changing only the extension or MIME type while leaving the encoded bytes unchanged; it can destroy the artifact or state needed to explain this result.
- Avoid repeatedly recompressing the sole source image without retaining an original and a decoded pixel comparison; that can replace the original HRESULT with a secondary failure from another layer.
Neighboring codes to separate
| Result | Different condition |
|---|---|
NS_E_WMP_BMP_INVALID_BITMASK | The BMP channel masks are inconsistent with the declared bit depth or compression mode |
NS_E_WMP_PNG_UNSUPPORTED_INTERLACE | The PNG interlace mode is not implemented by this WMP image path |
NS_E_WMP_BMP_TOPDOWN_DIB_UNSUPPORTED | The BMP is a top-down DIB representation unsupported by this WMP path |
If this result is followed by a broader “cannot play,” “cannot load,” or “operation failed” result, preserve the earlier event. The later code can be a consequence from a wrapper, fallback item or UI layer rather than the producing failure.
Completion criteria
After correction, create a fresh Player, control, parser or playlist object and rerun the smallest reproducer. Verify the resulting resource, list membership, saved file, library object or play state.
Technical references
- Skin files and image resources — documentation for this HRESULT.
- PNG specification — normative or platform material relevant to this HRESULT.
- Windows Media Player skins — API or format context.
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