Re: [SLUG] catting vob

From: Eben King (eben01@verizon.net)
Date: Sun Jul 23 2006 - 13:40:26 EDT


On Sun, 23 Jul 2006, Bob Stia wrote:

> On Saturday 22 July 2006 18:07, Eben King wrote:
>>
>> -aid n where n!=1 maybe? Try samples until you guess correctly. "-aid
>> 128" usually was my first guess.
>
> Wellllllll...... being so confident of your expertise I just added the -aid
> 128 option and what to my wondering eyes should appear???? An mpg in
> English!!

Good on ya.

> Tell me, where does that option come from ?????

"aid" == "audio identification" ~= audio channel

> Out of the blue????

Naw, 128=2^7. At least that's the only semi-rationalization I can come up
with. Maybe they reserved 128-255 for English, and 0-127 for other
languages. That would make the 2^7 bit an "is English" flag.

> How does one determine that the option is necessary??? (other than you
> don't understand the language)

AFAIK that's it. Just for kicks you might try other audio channels and see
if they turn up something interesting, like a director's commentary. If aid
128 doesn't exist, usually all the audio channels are on low numbers, so
I'd try 128 first, then 1 (unless you play mostly low-budget DVDs).

-- 
-eben   QebWenE01R@vTerYizUonI.nOetP   royalty.no-ip.org:81

And we never failed to fail / It was the easiest thing to do -- CSN

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