The most convenient way to download an installation DVD for Fedora 11 to your hard drive is using bittorrent clients for Linux.
Get Fedora 11 DVD with Bittorrent Client

The most convenient way to download an installation DVD for Fedora 11 to your hard drive is using bittorrent clients for Linux.
Valid for Fedora 10.
The solution works for SD card:
From a command line, it looks quite simple
This is quite simple:
A couple of methods for copying a CD to a file: