On Wed, Sep 01, 2004 at 02:22:46PM +1000, Robert Parker wrote:
> On Wednesday 01 September 2004 12:39, Paul E Condon wrote:
> > I've purchased a combo CD/DVD reader. I'm checking it. I find a
> > problem.
> >
> > With my old CD only reader, I was able to check on my CD writing by
> > using dd to read back a recently burnt CD and comparing the read back
> > file to the original iso using diff.
>
> diff is far too slow because of all of the seeks to the alternate iso images,
> better to do an md5sum on each iso.
If you just want to know whether two files are identical, I suggest
cmp(1). Uses less cpu than md5sum, and if the files are different, it
tells you the byte offset of the first difference.
> snippage
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