## Physical Device Driver Reference

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### CDROMAUDIO_SETCHANNELCTRL (40h) - Returns

02H Device not ready: The drive is not ready, or the controller does not respond.

07H Unknown media: The media is a compact disc that is not formatted according to the CD Redbook specifications.

13H Unsupported parameter: Any of the input channels are out of range, or the first 4 bytes of the parameter buffer are not "CD01."