I got the image via bittorrent and it appears to check out:
$ sha1sum -c SHA1SUM Fedora-9-Preview-x86_64-DVD.iso: OK
Yet I seem to have made two coasters with this so far.
When I attempted to burn the image using Brasero, it told me the DVD-R wasn't big enough. K3b writes the image, but upon verification says it can't find any tracks. And I'm not able to mount the disc.
Can you loopback mount the .iso file? mkdir -p /mnt/tmp1 mount -o ro,loop Fedora-9-Preview-x86_64-DVD.iso /mnt/tmp1 ls /mnt/tmp1
The .iso is more than 2**32 bytes in size; 0x10bb1a000 to be exact: 4491157504 Fedora-9-Preview-x86_64-DVD.iso This suggests a bug (not using 'long long' in enough places when talking about .iso size) in the programs you used.