I don't know what brainwave frequencies you should be producing while scanning. Since it sounds similar to superreading and dipping I recommend *no* not entrainment CD because the mind needs to change the predominant frequecy much more rapidly than and in concert with the material that you are superreading.
PhotoReading has next to no alpha so if you are using alpha entrainment to PhotoRead then you are using the wrong entrainment type. The mind will adjust to the correct frequencies in spite of any entrainment you might be using however one would be slowing their progress down if they use alpha entrainment.
Alex
