From owner-freebsd-chat@FreeBSD.ORG Tue Feb 16 18:47:38 2010 Return-Path: Delivered-To: freebsd-chat@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C05CA106568B for ; Tue, 16 Feb 2010 18:47:38 +0000 (UTC) (envelope-from mitchell@wyatt672earp.force9.co.uk) Received: from relay.pcl-ipout02.plus.net (relay.pcl-ipout02.plus.net [212.159.7.100]) by mx1.freebsd.org (Postfix) with ESMTP id 5FCBB8FC0C for ; Tue, 16 Feb 2010 18:47:38 +0000 (UTC) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvsEAHR3ekvUnw4T/2dsb2JhbACbGXS9fYRbBA Received: from pih-relay06.plus.net ([212.159.14.19]) by relay.pcl-ipout02.plus.net with ESMTP; 16 Feb 2010 18:47:36 +0000 Received: from [81.174.210.103] (helo=81-174-210-103.pth-as3.dial.plus.net) by pih-relay06.plus.net with esmtp (Exim) id 1NhSSN-0004JX-Qk; Tue, 16 Feb 2010 18:47:36 +0000 From: Frank Mitchell To: freebsd-chat@freebsd.org, staffslug@staffslug.org.uk, sc@mailman.lug.org.uk Date: Tue, 16 Feb 2010 18:48:15 +0000 User-Agent: KMail/1.9.10 References: <201002151055.o1FAtVwA072144@lurza.secnetix.de> In-Reply-To: <201002151055.o1FAtVwA072144@lurza.secnetix.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Message-Id: <201002161848.16073.mitchell@wyatt672earp.force9.co.uk> X-Plusnet-Relay: aff0c1bee14ec0256ca87a9803b288d5 Cc: Subject: Re: [SC.LUG] ISO Image dd To DVD+RW X-BeenThere: freebsd-chat@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Non technical items related to the community List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Feb 2010 18:47:38 -0000 Hmm: I reckon you need to use Formatted Media, which DVD+RW must be. It's Random= ly=20 Addressable, so you don't need to Close Session like on a Read-Only Disk.=20 Buffer Underruns are supposed to be irrelevant using DVD+. And the Drive=20 itself can calibrate the Optical Power from the Disk itself. I know I read= =20 about this somewhere, and the article in question was saying you could=20 archive tar files this way. Anybody got any further info? On Monday 15 February 2010 10:55:31 Oliver Fromme wrote: > Frank Mitchell <> wrote: > > Latest issue of Linux Format Mag gives you a DVD ISO Image for FreeBSD= =20 v8.0,=20 > > which I happen to be interested in. I was also looking for an interest= ing=20 use=20 > > for my DVD+RW disks. I read somewhere you could "dd" straight from an = ISO=20 > > Image file to DVD+RW, though I couldn't remember where. >=20 > Don't know about Linux, but on FreeBSD you can use the growisofs tool > from the "dvd+rw" tools collection (ports/sysutils/dvd+rw-tools). > The syntax is simple: growisofs -dvd-compat -Z /dev/cd0=3Ddvdimage.iso > (/dev/cd0 is my dvd drive.) I think you can also use the burncd > tool that is part of FreeBSD's base system, but I haven't tried to > do that. growisofs works perfectly fine for me (it also handles > double-layer media (8.5 GB) correctly, BTW). >=20 > You cannot use dd for that purpose because dd doesn't have special > knowledge about the recording process, e.g. it doesn't know how to > determine the laser power, it doesn't know how to enable burn-proof, > it doesn't know how to fixate a CD or DVD, i.e. the session won't > be closed properly, and so on. That's why a special-purpose tool > is better suited to handle recording of CD and DVD media. >=20 > Best regards > Oliver >=20 > --=20 > Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. > Handelsregister: Registergericht Muenchen, HRA 74606, Gesch=E4ftsfuehrun= g: > secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht M=FC= n- > chen, HRB 125758, Gesch=E4ftsf=FChrer: Maik Bachmann, Olaf Erb, Ralf Geb= hart >=20 > FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd >=20 > "The last good thing written in C was > Franz Schubert's Symphony number 9." > -- Erwin Dieterich >=20 > _______________________________________________ > SC mailing list > SC@mailman.lug.org.uk > https://mailman.lug.org.uk/mailman/listinfo/sc >=20