BASS_CD_GetTrackLength

Retrieves the length (in bytes) of a track.

DWORD BASS_CD_GetTrackLength(
    DWORD drive,
    DWORD track
);

Parameters

drive	The drive... 0 = the first drive.
track	The track to retrieve the length of... 0 = the first track.

If an error occurs, -1 is returned, use BASS_ErrorGetCode to get the error code. If successful, the length of the track is returned.

BASS_ERROR_DEVICE	drive is invalid.
BASS_ERROR_NOCD	There is no CD in the drive.
BASS_ERROR_CDTRACK	The track number is invalid.
BASS_ERROR_NOTAUDIO	The track is not an audio track.

CD audio is always 44100hz stereo 16-bit. That is 176400 bytes per second. So dividing the track length by 176400 gives the length in seconds.