[CentOS] About md5sum

Fajar Priyanto wrote:
> Hi all,
> A friend of mine gives me a copy of Centos5 DVD.
> I then make an iso of it using dd if=/dev/cdrom of=centos5.iso command.
> I then check it using sha1sum.
> But the result is different than of listed in Centos website.
> Should it the same? Or we simply cannot compare sha1sum from burned DVD to 
> that of 'unburned' iso file?
> Thanks.
>   
an afterthought -

the subject of your mail was md5sum...the body speaks about sha1sum. 
They're different mechanisms;  comparing a sha hash to an md5 will
always be different, I believe.

~Ray