What does HRESULT 0xC0AA0507 (E_IMAPI_DF2TAO_MEDIA_IS_NOT_SUPPORTED) mean?

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: the inserted media type is unsupported for Track-at-Once audio writing.

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E_IMAPI_DF2TAO_MEDIA_IS_NOT_BLANK	E_IMAPI_DF2TAO_TRACK_LIMIT_REACHED

E_IMAPI_DF2TAO_MEDIA_IS_NOT_SUPPORTED

E_IMAPI_DF2TAO_MEDIA_IS_NOT_SUPPORTED reports a media-type mismatch for IDiscFormat2TrackAtOnce. Microsoft limits this interface to blank CD-R and CD-RW media. DVD and other optical profiles are not valid TAO audio targets even if they are writable and empty.

Check physical media type before preparing the session

Read CurrentPhysicalMediaType and retain the recorder identity.
Use IDiscFormat2 media-support checks rather than equating “writable” with “TAO audio supported”.
After inserting a CD-R or CD-RW, repeat the support and blank-state checks because both conditions are required.

The error should not trigger audio-stream conversion: stream validity is a later AddAudioTrack concern. It also differs from MEDIA_IS_NOT_BLANK; the wrong medium can be completely blank and still fail. Applications should filter recorder/media combinations before offering a Track-at-Once action so the user does not discover an incompatible target only after session preparation.

IDiscFormat2TrackAtOnce · Checking media support · IDiscFormat2

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