Some would like to study further because it will mean more interesting work and probably better pay.
So eventually they have to study the written word and not a presentation that is moving and full of colour.
Some students then find that their brain has never really learned to concentrate for more than a few moments on any one thing that is not moving. But now they need to. And this is where the Betakit and its successors are so useful. (Feedback)
The stereo files are too big to stream so these audio programs are on CD so you can transfer them where you like. Or just use your laptop to play them.
You will need comfortable stereo headphones and a long enough lead to be able to play the 30 minute relaxation CDs while you are on your bed and also listen to the Concentration CDs while you study.
Electronic technology has changed over the years but our brain hasn’t.