[MEncoder-users] save some MB switching fourcc

[Eric Guirbal]

Hello,

I encoded a video using Mencoder 1.0pre7-3.3.1 with the default fourcc (FMP4). 
Then I switched FMP4 for XVID without reencoding and surprise, the new file is 
7 MB less. Likewise If I "switch" FMP4 for FMP4.
Do you have an explanation? Thanks.

-- Eric Guirbal