On Fri, 2006-07-28 at 01:28 +0530, Sudhir Jorwekar wrote: > Hi All, > > I downloaded FC5 DVD iso, and verified checksum. > When i burned the image and used media check to test the DVD, it failed. > > then i mounted the DVD and the image in separate directories and run > "diff -r .." > on them. It does not show any difference between two directories. > > What could be the reason for this? kernel bug. > also, is ("diff -r .."+ bootable DVD) a reliable enough test ? It's probably OK but to be sure you could extract the ISO image back off the DVD and compare it with the original (or just re-run the checksum on it): http://www.city-fan.org/tips/IsoImageFromMedia Paul.