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NS_E_DVD_INVALID_DISC_REGION
Diagnostic meaning beyond the standard message
The actionable meaning of 0xC00D1165 / NS_E_DVD_INVALID_DISC_REGION is comparing the DVD-Video disc region mask with the playback environment.
Why the operation can reach this point
Successful reading of files from the DVD volume does not prove that the navigation program, decoder graph or protected output path can be used. One concrete reproduction is: the disc’s region mask excludes the drive’s current region.
Evidence matrix
| Evidence | Why it matters for invalid disc region |
|---|---|
| Producing object and operation | disc path and media generation, DVD domain, title/chapter, region values for disc/drive/decoder, selected audio/video/subpicture streams, decoder CLSIDs, renderer and display mode, protection negotiation result and first DirectShow HRESULT |
| Key observation | disc region mask, drive region and remaining changes, decoder/system region |
| Controlled comparison | Repeat the producing call after changing only this condition: use media intended for the configured region or an authorized region setting. |
Minimal experiment
- Capture
0xC00D1165, the exact Player/API operation and the first timestamp at which it appears. - Save disc region mask, drive region and remaining changes, decoder/system region; do this before ejecting media, reconnecting a device, canceling a job or rebuilding the Player object.
- Correlate the result with disc path and media generation, DVD domain, title/chapter, region values for disc/drive/decoder, selected audio/video/subpicture streams, decoder CLSIDs, renderer and display mode, protection negotiation result and first DirectShow HRESULT.
- Reproduce once with the original source and destination, then apply only this change: use media intended for the configured region or an authorized region setting.
Do not collapse it with these results
| Related result | Different condition |
|---|---|
NS_E_DVD_AUTHORING_PROBLEM | parsing DVD-Video navigation structures that violate the supported format |
NS_E_DVD_COMPATIBLE_VIDEO_CARD | building a DVD renderer path supported by the active graphics adapter |
NS_E_DVD_COPY_PROTECT | completing DVD drive, navigator, decoder and renderer protection negotiation |
Recovery and verification
Resolve the responsible precondition: Use media intended for the configured region or an authorized region setting. A successful retest must pass the same invalid disc region checkpoint, not merely hide the message in a different UI path.
During verification, do not bypass region or copy-protection checks; diagnose the supported playback path by preserving the exact disc, drive, decoder and display connection involved.
Region evidence that should be recorded separately
Keep the disc region mask, the drive region and the decoder/system region as separate values. A message about “region” does not identify which pair failed. Also record the remaining hardware region-change count before making an authorized change; repeated experimentation can consume a limited drive setting without proving that the disc and decoder agree.
Authoritative documentation
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