HRESULT 0xC00D11AE (NS_E_WMP_IMAPI_DEVICE

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Description:

Windows Media Player cannot burn the files. Verify that the burner is connected properly and that the disc is clean and not damaged. If the burner is already in use, wait until the current task finishes or quit other programs that might be using the burner.%0

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NS_E_WMP_IMAPI_DEVICE_NOTPRESENT	NS_E_WMP_IMAPI_LOSS_OF_STREAMING

NS_E_WMP_IMAPI_DEVICE_BUSY

Failure point and ownership

NS_E_WMP_IMAPI_DEVICE_BUSY with value 0xC00D11AE records acquiring the recorder while another operation or process owns it. The producing call and its state are more diagnostic than a later aggregate Player failure.

Underlying mechanism

A recorder that enumerates can still be busy, incompatible with the inserted medium or unable to sustain the selected write operation. The condition can be reproduced when another application holds exclusive access to the burner.

Trace fields worth keeping

Evidence	Why it matters for imapi device busy
Producing object and operation	recorder unique ID and exclusive-access owner, inserted media profile/state, burn format, playlist item, source locality, duration/byte estimate, staging directory free space, write speed, current IMAPI action and underlying HRESULT
Key observation	exclusive-access owner, current drive command, competing process and media state
Controlled comparison	Repeat the producing call after changing only this condition: wait for finalization/erase to finish or close the competing owner before acquiring access.

Decision path

Capture 0xC00D11AE, the exact Player/API operation and the first timestamp at which it appears.
Save exclusive-access owner, current drive command, competing process and media state; do this before ejecting media, reconnecting a device, canceling a job or rebuilding the Player object.
Correlate the result with recorder unique ID and exclusive-access owner, inserted media profile/state, burn format, playlist item, source locality, duration/byte estimate, staging directory free space, write speed, current IMAPI action and underlying HRESULT.
Reproduce once with the original source and destination, then apply only this change: wait for finalization/erase to finish or close the competing owner before acquiring access.

Close alternatives

Related result	Different condition
`NS_E_WMP_IMAPI_DEVICE_NOTPRESENT`	opening the recorder after it was removed or its device path changed
`NS_E_WMP_IMAPI_LOSS_OF_STREAMING`	feeding the recorder slowly enough that its write buffer underruns
`NS_E_WMP_IMAPI_GENERIC`	mapping an IMAPI result that the Player did not classify more specifically

Safe correction

Correct this boundary by making sure you wait for finalization/erase to finish or close the competing owner before acquiring access. Then reacquire the interface or media state that produced it and repeat that call.

During verification, do not repeatedly start a new burn against a drive that still owns or finalizes the previous session; capture the media state and recorder owner before ejecting or replacing the disc.

Discriminating evidence: Record the optical recorder identifier, exclusive-access owner and active IMAPI operation when the burn request starts. A busy recorder is a resource-ownership condition; incompatible media can be present in an otherwise idle recorder and must be diagnosed separately.

Source material

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