Quote Originally Posted by brosis View Post
Doesn't have to be CDs, can be any other popular disk format.
You missed this part:

"If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code."

And the source you previously linked to (4.1.4) basically says that this part allows for internet-only distribution of source code under GPLv2.