Comment 12 for bug 175709

I used the medibuntu repository, installed:
http://packages.medibuntu.org/jaunty/mplayer.html
http://packages.medibuntu.org/jaunty/libamrwb3.html
http://packages.medibuntu.org/jaunty/libamrnb3.html

You have to use mplayer (or smplayer) to play your files. Cheers!

My file info:
$ ffmpeg -i MOV00001.3gp
[...]
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'MOV00001.3gp':
  Duration: 00:01:40.00, start: 0.000000, bitrate: 93 kb/s
    Stream #0.0(jpn): Video: h263, yuv420p, 176x144 [PAR 12:11 DAR 4:3], 29.97 tbr, 250 tbn, 29.97 tbc
    Stream #0.1(jpn): Audio: samr / 0x726D6173, 8000 Hz, mono, s16

$ mplayer MOV00001.3gp
MPlayer 1.0rc2-4.3.3 (C) 2000-2007 MPlayer Team
CPU: Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz (Family: 6, Model: 15, Stepping: 11)
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing MOV00001.3gp.
ISO: File Type Major Brand: 3GPP Profile 5
Quicktime/MOV file format detected.
[mov] Video stream found, -vid 0
[mov] Audio stream found, -aid 1
MOV: unknown sound atom version (45075152); may not work!
VIDEO: [s263] 176x144 24bpp 1.852 fps 0.0 kbps ( 0.0 kbyte/s)
xscreensaver_disable: Could not find XScreenSaver window.
GNOME screensaver disabled
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh263] vfm: ffmpeg (FFmpeg H.263+ decoder)
==========================================================================
==========================================================================
Forced audio codec: mad
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 8000 Hz, 1 ch, s16le, 128.0 kbit/100.00% (ratio: 16000->16000)
Selected audio codec: [ffamrnb] afm: ffmpeg (AMR Narrowband)
==========================================================================
AO: [pulse] 8000Hz 1ch s16le (2 bytes per sample)
Starting playback...
VDec: vo config request - 176 x 144 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
VO: [xv] 176x144 => 192x144 Planar YV12