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E_IMAPI_REQUEST_CANCELLED
E_IMAPI_REQUEST_CANCELLED identifies intentional cancellation rather than recorder incompatibility or corrupted media. IMAPI write and erase operations can report progress while a caller or application decides to stop the current request, so the cancellation owner and timing are central to diagnosis.
Find the component that requested cancellation
- Record UI cancellation, shutdown, job abort, or callback decisions at the same timestamp.
- Keep the most recent write/erase progress values so it is clear how far the operation had advanced.
- Do not automatically retry a user-cancelled burn; require a new explicit operation and re-evaluate current media state.
Cancellation can leave physical media in a state that depends on the recording format and the point at which the request stopped. The next operation should query the current medium and format support again instead of assuming it is still blank or writable exactly as before. The HRESULT itself does not say that the drive malfunctioned, and replacing hardware is not a targeted response unless separate device errors are present.
IMAPI return values · IDiscFormat2Data · EraseMedia
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