Hello, I wonder if there is a way to check the sha1sum of Fedora Installation DVD without booting and using the mediacheck of the FC6 installer program? I know that the iso I downloaded had correct sha1sum. But I want to verify that the media I burned also has a correct sha1sum without rebooting and starting the medaicheck of the installer. /dev/hdd in my device (the DVD). So I tried "sha1sum /dev/hdd" (I tried twice: when /dev/hdd was not mounted and when it was mounted) but the result I got was different from what is in the official FC6 sh1sum page. Also I tried dumping the iso to disk from the CD drive thus: dd if=/dev/hdd of=/work/FC6dvd.iso and than ran "sha1sum /work/FC6dvd.iso" but again I got the same result as in "sha1sum /dev/hdd" before , which is ***NOT*** what is on the web page. I assume that the iso on the media was burned correctly because others installed from it. However, is it possible somehow to perform sh1sum correctly on a media DVD? regards, MR