On Sun, Feb 13, 2011 at 03:12:29AM +0100, meino.cra...@gmx.de wrote

> from recording from my dvbt-card I have some ts-files (transport
> stream). 
> 
> To save space AND quality, I want to strip anything from those files,
> which is not wanted: anything, which is neither audio nor video.

  What you've just described is reencoding, even if it's from a TS with
multiple subchannels, 4 different audio tracks, and a week of program
info in PSIP to a single-channel TS.  The fact that the output container
is similar to the input container is irrelavant.  It's still reencoding.

-- 
Walter Dnes <waltd...@waltdnes.org>

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