From owner-freebsd-questions@FreeBSD.ORG Fri Dec 5 21:18:37 2008 Return-Path: Delivered-To: FreeBSD-Questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 060D91065695 for ; Fri, 5 Dec 2008 21:18:37 +0000 (UTC) (envelope-from dkelly@Grumpy.DynDNS.org) Received: from smtp.knology.net (smtp.knology.net [24.214.63.101]) by mx1.freebsd.org (Postfix) with ESMTP id AA4DF8FC30 for ; Fri, 5 Dec 2008 21:18:35 +0000 (UTC) (envelope-from dkelly@Grumpy.DynDNS.org) Received: (qmail 13837 invoked by uid 0); 5 Dec 2008 21:18:33 -0000 Received: from unknown (HELO Grumpy.DynDNS.org) (75.76.211.79) by smtp2.knology.net with SMTP; 5 Dec 2008 21:18:33 -0000 Received: by Grumpy.DynDNS.org (Postfix, from userid 928) id 6E5A328422; Fri, 5 Dec 2008 15:18:33 -0600 (CST) Date: Fri, 5 Dec 2008 15:18:33 -0600 From: David Kelly To: Wojciech Puchar Message-ID: <20081205211833.GB37607@Grumpy.DynDNS.org> References: <20081205161112.f9bcddff.freebsd@edvax.de> <20081205164750.20fce934.freebsd@edvax.de> <20081205171703.B2281@wojtek.tensor.gdynia.pl> <20081205193220.GA36935@Grumpy.DynDNS.org> <20081205204227.P3415@wojtek.tensor.gdynia.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20081205204227.P3415@wojtek.tensor.gdynia.pl> User-Agent: Mutt/1.4.2.3i Cc: Polytropon , Andrew Gould , FreeBSD Questions Subject: Re: DVD cloning tool X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: FreeBSD-Questions@FreeBSD.org List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Dec 2008 21:18:37 -0000 On Fri, Dec 05, 2008 at 08:45:52PM +0100, Wojciech Puchar wrote: > > > >Agree that dd is good for simple CDs and DVDs but can't say that I know > >it will behave on multi-session or multi-format discs. > > the question was about DVD. dvd are not produced multisession or > multiformat. The above is contradicted below. *These* DVDs in question are known not multi-session? > and when copying multisession data DVD, it's much better to copy off > all files, possible add more and write as single session. Depends on what your homework assignment is. In the data center I was talking about one could make a good argument that the duplicate was to be multi-session if the original was. We don't know for sure it doesn't contain a presentation application or something counting on the multiple sessions. > actually it's rarely used. i never recorded even one multisession DVD > except once to test if it works :) On DVD-R it works badly, can only write 4 or 5 sessions and there is some huge buffer zone between each session, 200 to 500 MB. > with CD - you are right, but it was already told that readcd is OK. > > unfortunately AFAIK there is no similar tool for DVDs Thought readcd (out of cdrtools) also knew how to read DVD? -- David Kelly N4HHE, dkelly@HiWAAY.net ======================================================================== Whom computers would destroy, they must first drive mad.