[MEncoder-users] MPEG-2 muxer

[Reimar Döffinger]

Hello,
On Mon, Aug 27, 2007 at 03:32:53PM +0200, Nico Sabbi wrote:
> Nicolas Hesler wrote:
> >Is there any kind of syncing advantage when going from a source to a 
> >muxed Mpeg-2 file over doing 2 separate files (.m2v and .ac3 for 
> >instance)? 
> >
> >I'm finding that for compatibility with DVD authoring software, I have 
> >to demuxed the muxed mpeg-2 file anyway. 
> >
> >Is there a difference (sync or otherwise) between going directly to a 
> >muxed mpeg-2 file and eventually demuxing OR not muxing at all and 
> >creating two separate files (m2v and ac3)?
> >
> the advantage is that mencoder will be able to keep sync
> using its knowledge of the timestamps of the original file

Though in the case of ac3 with -oac copy, mencoder's "knowledge" has
little to do with reality, so it may make things worse...
That is of course not a problem if your original file does not already
come with ac3 and/or you reencode it anyway.

Greetings,
Reimar Döffinger