duane voth wrote:
>
> To make a bit for bit copy of a CD it is probably easier to extract
> the CD image directly to a file (avoid mkisofs all together):
>
> dd if=/dev/cdrom of=image.iso
>
> then cdrecord image.iso directly. You can test to see if your dd
> worked correctly with:
>
> mount image.iso -r -t iso9660 -o loop /mnt/iso
>
> This lets you browse (but not change) the image before you burn a CD.
If all you want is to test the CD copy just mount both original and
copy, then:
md5sum /dev/cdrom (the original)
md5sum /dev/scd0 (the copy)
Both must produce exactly the sam md5sum.
If they do not:
md5sum image.iso
will show you whether the read (dd) or write (cdrecord) was the
problem.
--
Regards,
Ron. [AU]
