[mythtv-users] MPEG4 bigger than MPEG2?

Ross Boylan RossBoylan at stanfordalumni.org
Fri Mar 9 05:41:57 UTC 2012

On Thu, 2012-03-08 at 23:56 -0500, Raymond Wagner wrote:
> On 3/8/2012 22:51, Ross Boylan wrote:
> > Hi, everyone.  I'm a new user, and am wondering why transcoding is
> > making my files bigger.  More specifically, I think I have transcoded a
> > file from MPEG-2 to MPEG-4, and it got a little bigger (3.1 vs 2.9GB).
> It's all a function of bitrate.  MythTV will not automatically choose an 
> 'ideal' bitrate for you, it will use what you tell it to.  If the 
> bitrate you told it to use is larger than the bitrate you recorded it 
> as, you will end up with a larger file.
How can I tell what  bitrate a recording is at?

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