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E_IMAPI_RECORDER_MEDIA_SPEED_MISMATCH
This HRESULT is a media/drive speed compatibility failure, not the normal write-speed adjustment reported by S_IMAPI_SPEEDADJUSTED. Microsoft specifically cites media rated above or below the range supported by the device as a possible cause.
Compare media capability with recorder write configurations
- Enumerate supported write speeds/descriptors for the current drive and medium.
- Record the requested speed, current media type, and recorder revision.
- Try media within the drive's supported speed range; simply requesting the same speed again does not change the physical mismatch.
Normal SetWriteSpeed negotiation can choose the closest supported speed when there is a usable configuration. This error indicates that the drive/media pairing itself does not provide a compatible speed path for the operation. Distinguish the two cases in telemetry so a successful adjustment is not escalated as hardware incompatibility.
SetWriteSpeed · Supported speed descriptors · IMAPI return values
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