Date: Fri, 5 Dec 2008 15:18:33 -0600 From: David Kelly <dkelly@hiwaay.net> To: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> Cc: Polytropon <freebsd@edvax.de>, Andrew Gould <andrewlylegould@gmail.com>, FreeBSD Questions <FreeBSD-Questions@freebsd.org> Subject: Re: DVD cloning tool Message-ID: <20081205211833.GB37607@Grumpy.DynDNS.org> In-Reply-To: <20081205204227.P3415@wojtek.tensor.gdynia.pl> References: <20081205161112.f9bcddff.freebsd@edvax.de> <d356c5630812050742s16f39e7asad3b6cfe8b5c1873@mail.gmail.com> <20081205164750.20fce934.freebsd@edvax.de> <20081205171703.B2281@wojtek.tensor.gdynia.pl> <20081205193220.GA36935@Grumpy.DynDNS.org> <20081205204227.P3415@wojtek.tensor.gdynia.pl>
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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.
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