dd errors with certain DVDs

[Tony Nelson]

At 6:19 PM +0100 3/28/07, Paul Smith wrote:
>On 3/27/07, Tony Nelson <tonynelson at georgeanelson.com> wrote:
>> dd if=/dev/dvd bs=2048 count=$(isosize -d 2048 /dev/dvd) | sha1sum
>
>Does the above work in the case of CDs? Can one correctly create an
>iso of a CD with
>
>dd if=/dev/dvd bs=2048 count=$(isosize -d 2048 /dev/dvd)
>
>?
>
>Paul

dd if=/dev/cdrom bs=2048 count=$(isosize -d 2048 /dev/dvd)

An ISO9660 filesystem is the same on CDs and DVDs.
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