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Date:      Thu, 27 May 2004 15:39:11 -0700 (PDT)
From:      Doug White <dwhite@gumbysoft.com>
To:        Vivek Khera <vivek@khera.org>
Cc:        stable@freebsd.org
Subject:   Re: max file size on cd9660 file system?
Message-ID:  <20040527153343.B53810@carver.gumbysoft.com>
In-Reply-To: <05E7A093-AE85-11D8-BE76-000A9578CFCC@khera.org>
References:  <9ECF30AE-AE58-11D8-BE76-000A9578CFCC@khera.org> <05E7A093-AE85-11D8-BE76-000A9578CFCC@khera.org>

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On Tue, 25 May 2004, Vivek Khera wrote:

> > This is not correct; HFS+ is its own filesystem, where Joilet is an
> > extension of ISO9660.  Considering you can mount it under FreeBSD with
> > cd9660fs, its not in HFS+ format.
>
> The application, burnz (http://www.thinkertons.com/burnz_features.htm)
> has a slider that lists the following image formats to burn to:
>
> ISO 9660 Level 1
> ISO 9660 Level 2
> Rock Ridge Extensions
> Joliet Extensions
> HFS+
>
> and claims that each higher format incorporates all of the features of
> the lower ones.  By default it choses the "HFS+" format.

Burnz is a cool tool. I use it, and payed for it even. Much, much more
efficient for burning disc images than Disk Utility, and I generally burn
images.

Burnz, in this case, creates a hybrid disc, one with HFS+ and another with
ISO9660+RR+Joilet, with the same data on both sessions.  This emulates the
default MacOS behavior if you burn a folder (as compared to burning a disc
image).

I can unequivcally say that HFS+ is _NOT_ based on ISO9660. Your MacOS
disks are all formatted in HFS+, and ISO9660 is a write-once format.

-- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite@gumbysoft.com          |  www.FreeBSD.org



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