I wanted to download these Stanford and MIT lectures. Unfortunately, they are all privatized by iMac. Do you see that all download links bring to itunes.com site? BTW, why are all the best world universities are subsumed by Apple? I have installed the iTunes, but I still do not see the Download button. All it does is play online.
Here is how the iTunes download page looks like
You may enjoy the DPI-aware perfect Mac interface. But, where is the "Download" button?