HRESULT 0xC00D116D (NS_E_DVD_NO_DECODER): meaning and diagnosis

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Description:

Windows Media Player cannot play the DVD because a compatible DVD decoder is not installed on your computer.%0

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NS_E_DVD_GRAPH_BUILDING	NS_E_DVD_PARENTAL

NS_E_DVD_NO_DECODER

No compatible DVD decoder was available

NS_E_DVD_NO_DECODER (0xC00D116D) is returned when Windows Media Player cannot build the DVD playback graph because no installed decoder accepts the required DVD/MPEG-2 media types. This is a component-availability problem, not a region error.

What to inspect

Enumerate candidate video/audio decoder CLSIDs and record activation failures.
Capture the media types exposed by the DVD Navigator and the decoder selected, if any.
Confirm decoder architecture matches the Player process and that registration points to an available binary.

Retest

Install or repair a compatible supported decoder and rebuild the graph in a fresh Player instance. If the graph now reaches region or copy-protection negotiation, treat that new HRESULT separately rather than continuing to diagnose decoder absence.

Technical references

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