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Date: Tue, 17 Nov 2009 04:24:11 -0200
From: =?iso-8859-1?Q?Jos=E9?= Romildo Malaquias <j.romildo@gmail.com>
To: gentoo-user@lists.gentoo.org
Subject: [gentoo-user] Reading a DVD as an ISO image
Message-ID: <20091117062411.GA16698@malaquias.DHCP-GERAL>
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Hello.

Once I have written a dvd ISO image to a dvd-r disk and then I have
deleted the image from the hard disk. Now I need the image again, but
reading the image from disk does not give me an identical image to the
original one.

I have used the commands

$ readcd -vvv dev=/dev/dvd f=image.iso

and

$ dd if=/dev/dvd of=image.iso

With both commands, the resulting image is 99.9% identical to the
original one.

Is there anything I can do to get an image identical to the original one?

Regards,

Romildo