This is a really strange request, but I was wondering if it is possible to download for free some audio only files of maths or physics lectures. The maths and physics would ideally be the sort encountered in the first year of a physics degree. (Content similar to the first few hundred pages of Riley, Hobson and Bence Mathematical methods for physics and engineering for example.).
Its because I'm gonna be travelling around a lot and I don't like reading the car (whilst someone else is driving).
Anymore useful links from people much appreciated too.