Yes, I have tried specifically listening to Super Memory Charger continuously.
Here are the results.
After every session of litening, I experience a great flow of relaxed alertness of my studies or whatever mental work I undertake. I can feel my memory simply being POWERFUL...and yes my photographic memory does greatly increase, but this wears off after couple of hours.
Now when I listen to the tape twice in a row...my results are doubled...I feel a even greater flow of thoughts and vivid pictures throughtout my mind...especially I take some meterial to read...I understand EVERYTHING i'm reading.
Now I didn't try listening to the tape 3 times in a row...because its kind of difficult maintaining a meditative, relaxed state sitting on your chair for 45 minutes (15 min x 3 times).