Re: Taskbar won't move

Ooops, left one out - the MPG format. Sorry about that, and corrected
below.

Bill in Co. wrote:
M.I.5¾ wrote:
"Bill in Co." <not_really_here@xxxxxxxxxxxxx> wrote in message
news:e$MUD1ofIHA.5180@xxxxxxxxxxxxxxxxxxxxxxx
AVI is a "wrapper". (in a sense, something like zip, except its for AV
apps).

Who knows what the limits are, on what is, and what is not, allowed to
be
wrapped, however. I expect it's loosely defined in some spec
somewhere.
:-)


It's a Microsoft system. 'AVI' stands for 'Audio Video Interleave' and
was
so called because the same file contained the audio and video interleaved
together. Although this doesn't sound like anything spectacular today,
previously the audio was stored in a different file to the video which
would give the early hard drive mechanisms a thorough workout.

This must have been quite awhile ago. Like back in the late 1980's -
early 1990's (just guessing).

One advantage of that is that it's easy to clean up the audio (audio
restoration), if needbe; and once you've done that, it's done, and no
remultiplexing of the audio track with the video is required. (Not much
of
a practical advantage, though).

Back at that point in time, I think audio was only in the WAV format
(can't
recall for certain though). I'm guessing the compressed formats for
audio
(i.e. music) weren't around back then, but I can't recall for sure, now.
IIRC, they probably came in around the 1990's.

Apple achieved
something similar with their own (but otherwise incompatible) .MOV
format.

And today we also have Microsoft's WMV format, which I think includes the
audio.

So let's summarize (correct me if I'm mistaken):
For audio and video together, we have .AVI, .MOV, MPG, and .WMV formats
(for a PC).

As you note .AVI can use just about any codec you care to dream up or
even
just raw video (making it the video equivalent of a .WAV file).

Oddly, high definition has in some ways taken a leap backwards because
many
editing systems store the HD video in .M2V files with the audio being
held
in an accompanying .AVI file (.AVI doesn't have to have video or indeed
audio). HD Camcorders use the highly compressed .MTS* format which can
also
carry surround sound in one of the recognised formats (usually Dolby
Digital
5.1).

*Usually transcoded into the similar .M2TS format at the editing stage,
which Blu-ray players understand.

Brian A. wrote:
"M.I.5¾" <no.one@xxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:47cd0479$1_1@xxxxxxxxxxxxxxxxxxxxxxxxx


To show you that it can be done I have created some video captures
of it
being done, I will place them on one of my web pages. They are
each
approx 8 MB and once I get them uploaded a link to them will be at:
http://basconotw.mvps.org/testpgs/tpg4.htm



They appear to be encoded with a codec that is not supported by this
PC,
so I am unable to view them. I don't know what the codec is, but it
doesn't matter as I couldn't load the codec if I did.



There standard .avi files which shouldn't be a problem for anyone to
view.


There is no such thing as a 'standard' .avi file. They can be encoded
in a
bewildering variety of codecs. I can view .avi files in a not so
large
variety of formats, but like any PC, not all of them. Unfortunately,
yours
is one that I can't read.

Your correct, I was thinking something different, the files open in
both
Win
MP 10 and 11 for me.


--


Brian A. Sesko { MS MVP_Windows Desktop User Experience }
Conflicts start where information lacks.
http://basconotw.mvps.org/

Suggested posting do's/don'ts: http://www.dts-l.org/goodpost.htm
How to ask a question: http://support.microsoft.com/kb/555375


.

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