CD Audio Streaming

Hi All, Any ideas of how to stream CD DA from the CD?. I want to try to code a "sound to light" demo, but using MCI and waveInXXXX functions creates a dealy on the graphics as I am using sound data that has already been played. so I want to stream the Audio Data from the CD via Main Ram before sending it to the Sound card. Any one got any ideas as there seems to be no source code or documentation on how to do this. Cheers.