Originally Posted by frankjoshua
It's not uncommon to have problems with downloaded files of that size. You should just make sure to check them with md5sum before you try to burn the image.
You should find matching numbers on fedoras web site or ftp server.
Fedora uses SHA1SUM, which is supposedly better than MD5SUM. To check the sha1sum, simply use "sha1sum fedora_iso_image.iso". The correct numbers should be in the file SHA1SUM in the same place as you got the ISO from.
I suggest burning at a lower speed, as this tends to improve reliability. Also, make sure that you are using a good quality media.
I hope this helps