No Warranties We distribute software in the hope that it will be useful, but without any warranty. No author or distributor of this software accepts responsibility to anyone for the consequences of using it or for whether it serves any particular purpose or works at all, unless he says so in writing. If the distribution is incomplete or the media fails, you can always download a replacement from any of the GNU mirrors, free of charge. Text mode does not work for tar files or compressed files.
Some programs have misc support files as well.
Have a look on ftp.gnu.org to see which ones. You should probably use one of the many mirrors of that site - the mirrors will be less busy, and you can find one closer to your site.