Date: Tue, 16 Feb 2010 18:48:15 +0000 From: Frank Mitchell <mitchell@wyatt672earp.force9.co.uk> To: freebsd-chat@freebsd.org, staffslug@staffslug.org.uk, sc@mailman.lug.org.uk Subject: Re: [SC.LUG] ISO Image dd To DVD+RW Message-ID: <201002161848.16073.mitchell@wyatt672earp.force9.co.uk> In-Reply-To: <201002151055.o1FAtVwA072144@lurza.secnetix.de> References: <201002151055.o1FAtVwA072144@lurza.secnetix.de>
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Hmm: I reckon you need to use Formatted Media, which DVD+RW must be. It's Randomly Addressable, so you don't need to Close Session like on a Read-Only Disk. Buffer Underruns are supposed to be irrelevant using DVD+. And the Drive itself can calibrate the Optical Power from the Disk itself. I know I read about this somewhere, and the article in question was saying you could 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 v8.0, > > which I happen to be interested in. I was also looking for an interesting use > > for my DVD+RW disks. I read somewhere you could "dd" straight from an ISO > > Image file to DVD+RW, though I couldn't remember where. > > 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=dvdimage.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). > > 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. > > Best regards > Oliver > > -- > Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. > Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: > secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- > chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart > > FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd > > "The last good thing written in C was > Franz Schubert's Symphony number 9." > -- Erwin Dieterich > > _______________________________________________ > SC mailing list > SC@mailman.lug.org.uk > https://mailman.lug.org.uk/mailman/listinfo/sc >
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