first use the fedora torrent
torrent clients AUTO check the file to make sure it is all there ( the chksum)
as to burnning a bootable DVD
i have never been able yo use the default microsoft windows software to
burn a ISO "as a image"
copy / paste WILL NOT WORK!!!!
i use CDburnerXP -- yes the name sounds a bit suspicious but it is a real program
and i know it works on Windows7 64 bit
https://cdburnerxp.se/en/home
this is really a CygWin build of LINUX code so that it runs on Windows
PS.
if downloading the 4.3 gig dvd to your Windows "Desktop" folder ( never a good idea)
there have been many many many many many complaints that internet explorer will not save a usable file to that location