On Fri, Jan 28, 2005 at 03:18:10AM -0500, Michael Shell wrote: > Another way to verify > is to use md5sum. However, md5sum does not seem to have an -n which implies > that dd must first be used to get the first N bytes of /dev/dvd where N is > the file length of the image - and doing so can take up a lot of HD space. You could just use a pipe: dd if=/dev/dvd bs=N count=1 | md5sum