On 3/25/07, Charles Curley <[email protected]> wrote:
> I am getting the errors below when I execute the command > > dd if=/dev/dvd of=dvd1.iso DVD/CD buring software does wierd things so that you cannot always depend on reading the whole thing without an error message. To see if you got all of it, mount your iso as a loopback device: mkdir foo mount dev1.iso foo mount /dev/dvd /media/<device> # as appropriate Then diff the two: diff -r --brief /media/<device> foo If the result is silent, you have all the data you need. To answer your other email, you can validate a freshly minted DVD similarly.
Thanks, Charles. Yes, it was the error regarding dd that was causing the md5sums mismatch (reported in the other post of mine). However, the method that you suggest works fine, and my problem is solved. The command dd is not very reliable, indeed. Paul