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Posted by ~P~ on 04/18/06 02:50
Jeff - two posts ago I corrected my statement to MPEG1 - Layer 2. Which you
immediately responded to saying it wasn't used in broadcasting. I was never
talking, at least intentionally, about MPEG2. The type of stuff we find on
DVDs, etc. I was specifically talking about MPEG1 layer 2 (mp2), vs. MPEG1
layer 3 (mp3) and how mp2, despite not having the newer compression scheme,
is considered a better format and so, while VC1 and H.264 are both newer -
they are in many ways optomized for HIGH compression rates (512kbs) not low
compression rates (20+Mbs) which Blu-ray and HD-DVD offer. Plus, codecs
have had 10 years of optomization with MPEG2 which really makes that
compression very, very stable and effective.
I'm NOT saying that makes VC1 or H.264 worse. But, just because they are
new, does not necessitate them being superior, at the available bandwidth,
either.
This is one I am happy to wait and see on as they should all look freakin'
awesome.
~P~
"Jeff Rife" <wevsr@nabs.net> wrote in message
news:MPG.1ea9a0f7f275144398a470@news.nabs.net...
So, why are you talking about this now? Before you were comparing
MPEG-2 audio to MPEG-1, layer 3 audio (MP3), and claimed that MPEG-2
came before MP3.
Well, of *course* MPEG-1 audio is a part of these, just like it is a part
of DVD. It's because MPEG-2 (actual MPEG-2, not MPEG-1 layer 2) audio
is a superset of MPEG-1 audio, and *includes* it. Thus, every device that
can decode MPEG-2 audio *must* be able to decode MPEG-1 audio, and thus
all MPEG-1 audio is part of these standards (which almost all specify
MPEG-2 at this point).
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