Although I’m in favour of Open Source Software, it’s good to know about Copyright and Intellectual Property (IP).
Concerning IP in Australia
This video, A day in the life of IP Australia, provides an over view of IPAustralia the Australian Government department dealing with IP and trademark concerns within Australia
On the AsapScience Youtube Channel there is a simple hearing test with a little background on the subject.
For a fuller test look at the following series of videos