What does HRESULT 0x00AA0005 (S_IMAPI_ROTATIONADJUSTED) mean?

S_IMAPI_ROTATIONADJUSTED

S_IMAPI_ROTATIONADJUSTED reports successful write configuration with a different rotational-speed control mode. In IMAPI, the write-speed request includes a Boolean preference for pure CAV. Microsoft documents that when CAV is requested but unsupported, the recorder may use another rotation type that it supports.

Inspect the negotiated rotation mode, not only the speed number

• Record RequestedRotationTypeIsPureCAV and CurrentRotationTypeIsPureCAV.
• Keep the physical media type and recorder product revision with the result because capabilities are device/media dependent.
• Do not retry the same configuration in a loop; IMAPI has already selected a usable alternative.

This status differs from S_IMAPI_SPEEDADJUSTED: the requested sectors-per-second value can remain acceptable while the rotational strategy changes. A caller that exposes “CAV required” as a hard policy should explicitly compare requested and current values and stop before the burn if they differ. For ordinary writing, treat the HRESULT as successful negotiation and use progress events to monitor the subsequent write operation.

SetWriteSpeed · Current write speed · IMAPI2 interfaces

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