From porune 2010
In language terms there might be no difference, I don't know.
In aviation there is a big difference.
Track is the real path (vector) the aircraft is flying. Heading plus/minus WCA (wind correction angle) is track.
Course is defined as a line from a VOR. There are courses inbound and outbound (sometimes referred as radial). Where I come from, the word course always implies from/to a VOR (sometimes an NDB, but then it's rather a QDM/QDR).
There might be different definitions in aviation in different regions of the world. I've flown in Europe, Asia, Africa, USA and Australia, and it's always been the same (well, more or less...)
Also explained here
http://aviation.stackexchange.com/qu...ding/7998#7998