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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. Keep the object generation and lower-level result attached to the NS_E_DVD_INVALID_DISC_REGION event.
Why the operation can reach this point
At the NS_E_DVD_INVALID_DISC_REGION checkpoint, dVD playback is built around the DirectShow DVD Navigator, which parses DVD-Video navigation data and exposes separate video, audio and subpicture outputs; Decoder availability, title-domain state, region policy, parental level and copy-protection negotiation are independent checkpoints. The page-specific boundary is comparing the DVD-Video disc region mask with the playback environment.
For NS_E_DVD_INVALID_DISC_REGION, 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 |
| Decisive observation | disc region mask, drive region and remaining changes, decoder/system region |
| Generation identity | Record the same disc, device, job or Player operation generation that returned NS_E_DVD_INVALID_DISC_REGION; a reconnect or media change creates a different test. |
| Underlying result | Keep the first device, filesystem, COM, codec, DirectShow, IMAPI or BITS result seen before the Player mapped it to NS_E_DVD_INVALID_DISC_REGION. |
| Controlled comparison | Repeat the producing call after changing only this condition: use media intended for the configured region or an authorized region setting. |
Decision matrix
| Observation | Interpretation |
|---|---|
| The recorded values match the boundary | The result is consistent with comparing the DVD-Video disc region mask with the playback environment; correct that state before changing unrelated codecs, drivers or playlists. |
A lower layer failed before NS_E_DVD_INVALID_DISC_REGION | Preserve that earlier HRESULT or device result because NS_E_DVD_INVALID_DISC_REGION may be only the Player-level mapping. |
| The same call passes after one isolated change | The comparison supports the invalid disc region diagnosis rather than a broad installation failure. |
The code changes after retesting NS_E_DVD_INVALID_DISC_REGION | The NS_E_DVD_INVALID_DISC_REGION boundary was passed; diagnose the new HRESULT as the next independent stage. |
NS_E_DVD_INVALID_DISC_REGION scopes the failure to comparing the DVD-Video disc region mask with the playback environment. The presence of NS_E_DVD_INVALID_DISC_REGION does not establish a system-wide media failure; verify its owning operation before changing unrelated Player components.
Minimal experiment
- Capture
0xC00D1165,NS_E_DVD_INVALID_DISC_REGION, 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.
- For
NS_E_DVD_INVALID_DISC_REGION, 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.
- Create a fresh operation generation and verify that the original call advances beyond the invalid disc region boundary.
Do not collapse it with these results
| Related result | Different diagnostic boundary |
|---|---|
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 by ensuring that you 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.
When verifying NS_E_DVD_INVALID_DISC_REGION, 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
- DVD decoder support in Windows.
- DirectShow filters and DVD Navigator.
- DirectShow DVD error and success codes.
- IDvdControl2 interface.
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