MP4Box different result

gistfile1.md

Ubuntu 14.04

$ /usr/bin/MP4Box -version
MP4Box - GPAC version 0.5.1-DEV-rev4065
GPAC Copyright (c) Telecom ParisTech 2000-2012
GPAC Configuration: --build=x86_64-linux-gnu --prefix=/usr --includedir=${prefix}/include --mandir=${prefix}/share/man --infodir=${prefix}/share/info --sysconfdir=/etc --localstatedir=/var --libdir=${prefix}/lib/x86_64-linux-gnu --libexecdir=${prefix}/lib/x86_64-linux-gnu --disable-maintainer-mode --disable-dependency-tracking --prefix=/usr --mandir=${prefix}/share/man --libdir=lib/x86_64-linux-gnu --extra-cflags=-Wall -fPIC -DPIC -I/usr/include/mozjs -DXP_UNIX --enable-joystick --enable-debug --disable-ssl
Features: GPAC_HAS_JPEG GPAC_HAS_PNG
$ /usr/bin/MP4Box -add 206.mp4:ext=.mp4 -new 206_ext.mp4
IsoMedia import 206.mp4 - track ID 1 - Video (size 480 x 360)
[iso file] Box "minf" has 57 extra bytes
IsoMedia import 206.mp4 - track ID 1 - Video (size 480 x 360)
[iso file] Box "minf" has 57 extra bytes
Error importing 206.mp4:ext=.mp4: IsoMedia File is truncated
$

Ubuntu 12.04

$ /usr/bin/MP4Box -version
MP4Box - GPAC version 0.4.6-DEV-rev
GPAC Copyright: (c) Jean Le Feuvre 2000-2005
                (c) ENST 2005-200X
GPAC Configuration: --build=x86_64-linux-gnu --prefix=/usr --includedir=${prefix}/include --mandir=${prefix}/share/man --infodir=${prefix}/share/info --sysconfdir=/etc --localstatedir=/var --libdir=${prefix}/lib/x86_64-linux-gnu --libexecdir=${prefix}/lib/x86_64-linux-gnu --disable-maintainer-mode --disable-dependency-tracking --prefix=/usr --mandir=${prefix}/share/man --libdir=lib/x86_64-linux-gnu --extra-cflags='-Wall -fPIC -DPIC -I/usr/include/mozjs -DXP_UNIX' --enable-joystick --enable-debug --disable-ssl
Features: GPAC_HAS_JPEG GPAC_HAS_PNG
You have new mail in /var/mail/nanapi
$ /usr/bin/MP4Box -add 206.mp4:ext=.mp4 -new 206_ext.mp4
IsoMedia import - track ID 1 - Video (size 480 x 360)
IsoMedia import - track ID 2 - Audio (SR 44100 - 1 channels)
Saving 206_ext.mp4: 0.500 secs Interleaving