[MEncoder-users] ac3 mistaken for mp3 in recent versions of MEncoder

[Reimar Döffinger]

On Wed, Apr 28, 2010 at 09:09:32AM -0500, Laine Lee wrote:
> On 4/27/10 4:56 PM, "Laine Lee" <llee040 at sbcglobal.net> wrote:
> 
> > https://rowdyspace.utsa.edu/users/mek985/share/Target/flyClip.zip
> > 
> > ... while I was preparing this response, the problem was
> > apparently remedied between mplayer versions 31101 and 31103. So please have
> > pity and take a look to offer suggestions for improved quality.
> 
> 
> This problem is more complicated than I thought. The problem didn't occur
> using version 31103 when my source was the excerpt linked above, which is a
> brief passage from a 108-minute capture. But it came back when I tried to
> convert the entire capture.

When does it disappear? WHen you cut the audio file, the video file or only
when both?
You might want to try -demuxer lavfpref or -audio-demuxer lavfpref
-ac +ac3 might also work to force it to use the right decoder.