We only have one set of courses in this Quality Assurance System. It is dedicated to the idea that there are many people working at cinema theaters around the world who would like to do a better job but there are stuck in the jobs that remain in the post-digital world.
In order to get this done we want the barrier to entry to be as low as possible. So, money wise that means Free. the exchange is a dedication to learning and communication when things are good or wrong.
[We do, of course, take contributions, donations and even advertising if a clever way to do it can be found.]