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Date:      Wed, 30 Aug 2006 10:08:04 +0100
From:      Howard Jones <howie@thingy.com>
To:        steveb@erienet.net
Cc:        Gary Kline <kline@tao.thought.org>, freebsd-questions@freebsd.org
Subject:   Re: taking many 198k mp3 files and converting them to 16k mp3
Message-ID:  <44F55574.7000200@thingy.com>
In-Reply-To: <20060827181340.A18228@erienet.net>
References:  <20060827053654.GA60292@thought.org>	<20060827060122.GA63679@ozzmosis.com>	<20060827074946.GA60715@thought.org> <20060827181340.A18228@erienet.net>

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steveb@erienet.net wrote:
> If your DVD player can't play mp3s, then it can't play DVDs. ;)
> Remember, mp3s are the audio layer of mpegs. And DVD videos consist of
> mpegs. 

For a DVD-Video disc, the audio formats are PCM (plain old wav,
effectively), AC-3 (dolby digital) and MPEG-1 Audio Layer II (only).

A lot of DVD players will also play MP3s, either on data CDs or data
DVDs (or both), but it isn't a requirement as far as I can tell. The
choices seem pretty arbitrary too. My Pioneer player will play a DVD-R
full of MP3s, but the replacement model will only play MP3 CD-Rs (and
you have to read the fine print in the manual to figure it out, too). It
seems that a lot of DivX-playing DVD players only play CDs of DivX, not
DVDs too (Toshiba, Pioneer again).

That's why I was fiddling around with MP2 and minimal video - it's an
actual standard DVD then. Although in fact I made an NTSC disc with MP2,
which is apparently a no-no.

My source was for the audio info was:
http://stream.uen.org/medsol/dvd/pages/dvd_format_audio4DVDvideo.html

Howie



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