From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Fri, 22 May 2009 20:24:57 -0400
Message-ID: <509071940905221724q271f9806s9fd79795fd10247f@mail.gmail.com>
From: Anthony Sorace <anothy@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
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Subject: [9fans] cdfs(4) multi-track DVDs
Topicbox-Message-UUID: fcfab368-ead4-11e9-9d60-3106f5b1d025

cdfs(4) contains a paragraph in BUGS that reads:
          Closing a just-written DVD-R track can take minutes while
          the drive burns the unused part of the track reservation
          (for the whole disc).  Thus only a single DVD-R track can be
          written on a DVD-R disc; use other media if you need more
          than one track per disc.
i know the array of media is confusing, but should i read this to imply that
DVD+R media are expected to support multi-track writes? i just did
something more or less like:
	for (i in 0 1 2 3 4 5 6 7)
		{venti/rdarena /dev/fs/arenas arenas0.$i > /mnt/cd/wd/$i}
the results were not what i had expected: i got d000, which looked
correct, and d001 which, upon cursory examination, looked like the
concatenation of arenas 1-7. am i just SOL with multi-track DVDs?

i hate this optical format nonsense.