Date: Fri, 21 Jan 2000 12:56:26 -0800 From: Conrad Minshall <conrad@apple.com> To: Soren Schmidt <sos@freebsd.dk>, logix@foobar.franken.de (Harold Gutch) Cc: beattie@aracnet.com (Brian Beattie), hackers@freebsd.org, current@freebsd.org Subject: Re: UDF Message-ID: <l03130300b4ae739c6bed@[17.202.45.145]> In-Reply-To: <200001150920.KAA98140@freebsd.dk> References: <20000114214234.A14486@foobar.franken.de>
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At 1:20 AM -0800 1/15/00, Soren Schmidt wrote: >It seems Harold Gutch wrote: >> On Fri, Jan 14, 2000 at 09:29:58AM +0100, Soren Schmidt wrote: >> > I have it on my TODO list, but I'm not started yet, and probably wont for >> > some time to come. >> > The reason I've put it on the backburner for now, is that DVD's can >> > be read using the cd9660 filesystem, and that is sufficient for my >> > needs for the time being. >> >> I was under the impression that this was only possible as long as >> the DVDs actually had an ISO9660 filesystem as well - which all >> of my DVDs have, but which still doesn't mean that there are no >> DVDs with only UDF, but no ISO9660 filesystem. > >I'm pretty sure all DVD's produced to date have an iso9660 file sys >on them, but they might change that in the future, so having UDF >support would be a win for us in the long run. DVD Forum's DVD-Video spec requires the UDF Bridge format, which gives you both UDF and 9660 metadata without duplicating file data. Commercial DVD videos are currently using this format. Bridge format is intended for read-only usage - as far as I know all DVD-RAM use is and will be restricted to "mono-metadata". -- Conrad Minshall ... conrad@apple.com ... 408 974-2749 Apple Computer ... Mac OS X Core Operating Systems ... NFS/UDF/etc Alternative email address: rad@acm.org. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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