HRESULT 0xC0AA050A (E_IMAPI_DF2TAO_NO_RECORDER

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: a recorder must be selected before Track-at-Once PrepareMedia.

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E_IMAPI_DF2TAO_NOT_ENOUGH_SPACE	E_IMAPI_DF2TAO_INVALID_ISRC

E_IMAPI_DF2TAO_NO_RECORDER_SPECIFIED

E_IMAPI_DF2TAO_NO_RECORDER_SPECIFIED is returned when PrepareMedia is called without assigning an IDiscRecorder2 to the Track-at-Once format object. Microsoft explicitly lists recorder selection as a prerequisite for the audio-write workflow.

Bind the recorder before opening the media session

Select and initialize the physical recorder.
Assign it through IDiscFormat2TrackAtOnce::put_Recorder.
Set a valid client name, then call PrepareMedia and preserve its result before adding audio.

The failure occurs before stream format or free-space validation becomes relevant. Supplying a different audio stream cannot fix missing recorder state. In applications that enumerate multiple optical drives, log the unique recorder ID chosen by the user and the exact format-object instance receiving put_Recorder; assigning a recorder to one COM object does not configure another newly created Track-at-Once object.

Recorder property · PrepareMedia · IDiscFormat2TrackAtOnce

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