What does HRESULT 0xC00D1171 (NS_E_DVD_NO_VIDEO_MEMORY) mean?

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Description:

Windows Media Player cannot play DVD video. You might need to adjust your Windows display settings. Open display settings in Control Panel, and then try lowering your screen resolution and color quality settings.%0

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NS_E_DVD_DEVICE_CONTENTION	NS_E_DVD_CANNOT_COPY_PROTECTED

NS_E_DVD_NO_VIDEO_MEMORY

Diagnostic meaning beyond the standard message

The actionable meaning of 0xC00D1171 / NS_E_DVD_NO_VIDEO_MEMORY is allocating renderer surfaces needed by the DVD decode path.

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: high resolution and color depth leave insufficient video memory for DVD surfaces.

Evidence matrix

Evidence	Why it matters for no video memory
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	display resolution/depth, renderer, surface allocation request and GPU memory pressure
Controlled comparison	Repeat the producing call after changing only this condition: reduce the required surface footprint or use a compatible renderer/adapter.

Minimal experiment

Capture 0xC00D1171, the exact Player/API operation and the first timestamp at which it appears.
Save display resolution/depth, renderer, surface allocation request and GPU memory pressure; 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: reduce the required surface footprint or use a compatible renderer/adapter.

Do not collapse it with these results

Related result	Different condition
`NS_E_DVD_CANNOT_COPY_PROTECTED`	rejecting extraction or copying of copy-protected DVD content
`NS_E_DVD_DEVICE_CONTENTION`	opening or controlling the DVD drive while another graph/process uses it
`NS_E_DVD_CANNOT_JUMP`	executing a title/chapter/menu jump allowed in the current DVD domain

Recovery and verification

Resolve the responsible precondition: Reduce the required surface footprint or use a compatible renderer/adapter. A successful retest must pass the same no video memory 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.

Authoritative documentation

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