Hello there,
I have been trying to encode my .ogv videos (made by RecordMyDesktop) to a .avi video to be able to compile it with KDEnlive or other programs.
Besides many forum threads, I have not been able to do so.

First try : Mencoder.
Code:
$mencoder -idx test.ogv -ni -ovc lavc -lavcopts vcodec=mpeg4 -oac mp3lame -o test.avi
MEncoder svn r34540 (Ubuntu), built with gcc-4.7 (C) 2000-2012 MPlayer Team
success: format: 0  data: 0x0 - 0xc613c7d
libavformat version 53.21.1 (external)
Mismatching header version 53.19.0
libavformat file format detected.
[ogg @ 0xb6b445e0]max_analyze_duration reached
[lavf] stream 1: video (theora), -vid 0
[lavf] stream 2: audio (vorbis), -aid 0
VIDEO:  [theo]  1280x800  0bpp  15.000 fps    0.0 kbps ( 0.0 kbyte/s)
[V] filefmt:44  fourcc:0x6F656874  size:1280x800  fps:15.000  ftime:=0.0667
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
libavcodec version 53.35.0 (external)
Mismatching header version 53.32.2
AUDIO: 22050 Hz, 1 ch, s16le, 90.0 kbit/25.51% (ratio: 11248->44100)
Selected audio codec: [ffvorbis] afm: ffmpeg (FFmpeg Vorbis)
==========================================================================
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [fftheora] vfm: ffmpeg (FFmpeg Theora)
==========================================================================
MP3 audio selected.
Movie-Aspect is 1.60:1 - prescaling to correct movie aspect.
videocodec: libavcodec (1280x800 fourcc=34504d46 [FMP4])
Writing header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
Writing header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
Pos:   0.1s      2f ( 0%)  0.00fps Trem:   0min  25mb  A-V:0.007 [0:0]
[VD_FFMPEG] DRI failure.
Pos:   3.0s     45f ( 0%)  0.00fps Trem:   2min  46mb  A-V:-0.133 [563:76]

1 duplicate frame(s)!
Pos:   3.7s     55f ( 0%)  0.00fps Trem:   2min  49mb  A-V:-0.133 [468:80]

1 duplicate frame(s)!
Pos:   4.5s     65f ( 0%)  0.00fps Trem:   3min  52mb  A-V:-0.133 [408:83]

1 duplicate frame(s)!
Pos:   5.2s     75f ( 0%) 67.26fps Trem:   3min  56mb  A-V:-0.133 [366:83]


...........................


1 duplicate frame(s)!
Pos: 112.3s   1535f ( 7%) 76.69fps Trem:   4min 114mb  A-V:-0.133 [542:84]

1 duplicate frame(s)!
Pos: 113.0s   1545f ( 7%) 76.72fps Trem:   4min 114mb  A-V:-0.133 [539:84]

1 duplicate frame(s)!
Pos: 113.5s   1551f ( 7%) 76.74fps Trem:   4min 114mb  A-V:-0.107 [537:84]

Too many audio packets in the buffer: (4096 in 819846 bytes).
Maybe you are playing a non-interleaved stream/file or the codec failed?
For AVI files, try to force non-interleaved mode with the -ni option.

Flushing video frames.
Writing index...
Writing header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.

Video stream:  537.671 kbit/s  (67208 B/s)  size: 7625968 bytes  113.467 secs  1551 frames

Audio stream:   84.661 kbit/s  (10582 B/s)  size: 1206129 bytes  113.972 secs
As you can see, every duplicated frames are deleted. I guess a solution would be to use the -ni option as recommended but when I use this option in the line, it is just ignored.

Second try : ffmpeg
Code:
$ ffmpeg -i test.ogv -y test.avi
ffmpeg version git-2013-03-06-c257fe1 Copyright (c) 2000-2013 the FFmpeg developers
  built on Mar  6 2013 23:06:39 with gcc 4.7 (Ubuntu/Linaro 4.7.2-2ubuntu1)
  configuration: --enable-gpl --enable-libass --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libspeex --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-x11grab --enable-libx264 --enable-nonfree --enable-version3
  libavutil      52. 17.103 / 52. 17.103
  libavcodec     54. 92.100 / 54. 92.100
  libavformat    54. 63.103 / 54. 63.103
  libavdevice    54.  3.103 / 54.  3.103
  libavfilter     3. 42.103 /  3. 42.103
  libswscale      2.  2.100 /  2.  2.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
[ogg @ 0x961d5c0] Multiple fisbone for the same stream is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[ogg @ 0x961d5c0] Header parsing failed for stream 0
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Input #0, ogg, from 'test.ogv':
  Duration: 00:27:43.67, start: 0.000000, bitrate: 998 kb/s
    Stream #0:0: Data: none
    Stream #0:1: Video: theora, yuv420p, 1280x800 [SAR 1:1 DAR 8:5], 15 fps, 15 tbr, 15 tbn, 15 tbc
    Metadata:
      RECORDMYDESKTOP : 0.3.8.1
    Stream #0:2: Audio: vorbis, 22050 Hz, mono, fltp, 89 kb/s
Output #0, avi, to 'test_2_pass.avi':
  Metadata:
    ISFT            : Lavf54.63.103
    Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 1280x800 [SAR 1:1 DAR 8:5], q=2-31, 200 kb/s, 15 tbn, 15 tbc
    Metadata:
      RECORDMYDESKTOP : 0.3.8.1
    Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 22050 Hz, mono, fltp
Stream mapping:
  Stream #0:1 -> #0:0 (theora -> mpeg4)
  Stream #0:2 -> #0:1 (vorbis -> libmp3lame)
Press [q] to stop, [?] for help
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
    Last message repeated 1 times
Broken file, keyframe not correctly marked.ime=00:00:09.84 bitrate= 348.1kbits/s    
Broken file, keyframe not correctly marked.time=00:00:15.80 bitrate= 425.4kbits/s    
Broken file, keyframe not correctly marked.time=00:00:23.86 bitrate= 449.4kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:00:31.94 bitrate= 426.5kbits/s    
Broken file, keyframe not correctly marked.time=00:00:35.86 bitrate= 452.9kbits/s    
Broken file, keyframe not correctly marked.time=00:00:42.21 bitrate= 512.3kbits/s    
Broken file, keyframe not correctly marked.time=00:00:53.66 bitrate= 525.3kbits/s    
Broken file, keyframe not correctly marked.time=00:00:59.42 bitrate= 518.7kbits/s    
Broken file, keyframe not correctly marked.time=00:01:03.39 bitrate= 522.0kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:01:16.27 bitrate= 538.7kbits/s    
Broken file, keyframe not correctly marked.time=00:01:19.20 bitrate= 553.6kbits/s    
Broken file, keyframe not correctly marked.time=00:01:24.71 bitrate= 549.8kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:01:30.26 bitrate= 543.5kbits/s    
Broken file, keyframe not correctly marked.time=00:01:37.22 bitrate= 536.0kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:01:43.28 bitrate= 529.9kbits/s    
Broken file, keyframe not correctly marked.time=00:01:47.33 bitrate= 535.1kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:01:56.32 bitrate= 516.3kbits/s    
Broken file, keyframe not correctly marked.time=00:02:07.50 bitrate= 514.0kbits/s    
Broken file, keyframe not correctly marked.time=00:02:11.66 bitrate= 520.0kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:02:19.73 bitrate= 508.7kbits/s    
Broken file, keyframe not correctly marked.time=00:02:24.87 bitrate= 510.0kbits/s    
Broken file, keyframe not correctly marked.time=00:02:33.93 bitrate= 514.3kbits/s    
Broken file, keyframe not correctly marked.time=00:02:38.33 bitrate= 520.0kbits/s    
Broken file, keyframe not correctly marked.time=00:02:45.06 bitrate= 533.8kbits/s    
Broken file, keyframe not correctly marked.time=00:02:48.00 bitrate= 543.0kbits/s    
Broken file, keyframe not correctly marked.time=00:02:57.73 bitrate= 561.0kbits/s    
Broken file, keyframe not correctly marked.time=00:03:02.51 bitrate= 562.9kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:03:11.58 bitrate= 561.5kbits/s    
Broken file, keyframe not correctly marked.time=00:03:14.00 bitrate= 566.5kbits/s    
Broken file, keyframe not correctly marked.time=00:03:18.68 bitrate= 565.3kbits/s    
Broken file, keyframe not correctly marked.time=00:03:21.93 bitrate= 564.6kbits/s    
Broken file, keyframe not correctly marked.time=00:03:31.26 bitrate= 557.7kbits/s    
Broken file, keyframe not correctly marked.time=00:03:34.93 bitrate= 557.5kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:03:44.54 bitrate= 539.3kbits/s    
Broken file, keyframe not correctly marked.time=00:03:48.20 bitrate= 539.0kbits/s    
Broken file, keyframe not correctly marked.time=00:03:51.46 bitrate= 540.2kbits/s    
Broken file, keyframe not correctly marked.time=00:04:01.80 bitrate= 541.0kbits/s    
Broken file, keyframe not correctly marked.time=00:04:06.09 bitrate= 537.9kbits/s    
Broken file, keyframe not correctly marked.time=00:04:09.02 bitrate= 539.1kbits/s    
Broken file, keyframe not correctly marked.time=00:04:12.40 bitrate= 538.0kbits/s    
Broken file, keyframe not correctly marked.time=00:04:17.56 bitrate= 535.2kbits/s    
Broken file, keyframe not correctly marked.time=00:04:28.66 bitrate= 533.4kbits/s    
Broken file, keyframe not correctly marked.time=00:04:32.40 bitrate= 533.4kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:04:43.01 bitrate= 523.9kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:04:55.26 bitrate= 519.7kbits/s    
Broken file, keyframe not correctly marked.time=00:05:02.73 bitrate= 511.6kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:05:08.33 bitrate= 507.0kbits/s    
Broken file, keyframe not correctly marked.time=00:05:11.46 bitrate= 508.4kbits/s    
Broken file, keyframe not correctly marked.time=00:05:19.73 bitrate= 500.7kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:05:24.80 bitrate= 498.3kbits/s    
Broken file, keyframe not correctly marked.time=00:05:29.24 bitrate= 497.5kbits/s    
Broken file, keyframe not correctly marked.time=00:05:38.40 bitrate= 494.8kbits/s    
Broken file, keyframe not correctly marked.time=00:05:44.00 bitrate= 491.2kbits/s    
Broken file, keyframe not correctly marked.time=00:05:53.06 bitrate= 488.7kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:06:02.26 bitrate= 484.3kbits/s    
Broken file, keyframe not correctly marked.time=00:06:05.46 bitrate= 483.5kbits/s    
Broken file, keyframe not correctly marked.time=00:06:16.99 bitrate= 477.5kbits/s    
Broken file, keyframe not correctly marked.time=00:06:22.00 bitrate= 475.4kbits/s    
Broken file, keyframe not correctly marked.time=00:06:25.13 bitrate= 479.8kbits/s    
Broken file, keyframe not correctly marked.time=00:06:31.91 bitrate= 487.2kbits/s    
Broken file, keyframe not correctly marked.time=00:06:39.20 bitrate= 493.6kbits/s    
Broken file, keyframe not correctly marked.time=00:06:42.62 bitrate= 497.3kbits/s    
Broken file, keyframe not correctly marked.time=00:06:45.60 bitrate= 500.5kbits/s    
Broken file, keyframe not correctly marked.time=00:06:52.13 bitrate= 499.3kbits/s    
Broken file, keyframe not correctly marked.time=00:06:59.73 bitrate= 504.4kbits/s    
Broken file, keyframe not correctly marked.time=00:07:12.77 bitrate= 516.9kbits/s    
Broken file, keyframe not correctly marked.time=00:07:16.50 bitrate= 519.3kbits/s    
Broken file, keyframe not correctly marked.time=00:07:27.47 bitrate= 526.4kbits/s    
Broken file, keyframe not correctly marked.time=00:07:29.66 bitrate= 529.6kbits/s    
Broken file, keyframe not correctly marked.time=00:07:32.93 bitrate= 532.9kbits/s    
Broken file, keyframe not correctly marked.time=00:07:38.20 bitrate= 532.6kbits/s    
Broken file, keyframe not correctly marked.time=00:07:43.46 bitrate= 532.2kbits/s    
Broken file, keyframe not correctly marked.time=00:07:49.08 bitrate= 531.6kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:08:01.12 bitrate= 536.7kbits/s    
Broken file, keyframe not correctly marked.time=00:08:04.80 bitrate= 536.9kbits/s    
Broken file, keyframe not correctly marked.time=00:08:08.48 bitrate= 537.8kbits/s    
Broken file, keyframe not correctly marked.time=00:08:12.17 bitrate= 538.1kbits/s    
Broken file, keyframe not correctly marked.time=00:08:15.67 bitrate= 539.2kbits/s    
Broken file, keyframe not correctly marked.time=00:08:22.26 bitrate= 541.3kbits/s    
Broken file, keyframe not correctly marked.time=00:08:25.20 bitrate= 542.4kbits/s    
Broken file, keyframe not correctly marked.time=00:08:35.94 bitrate= 545.2kbits/s    
Broken file, keyframe not correctly marked.time=00:08:38.93 bitrate= 545.8kbits/s    
Broken file, keyframe not correctly marked.time=00:08:43.12 bitrate= 545.8kbits/s    
Broken file, keyframe not correctly marked.time=00:08:48.66 bitrate= 543.9kbits/s    
Broken file, keyframe not correctly marked.time=00:08:52.68 bitrate= 543.9kbits/s    
Broken file, keyframe not correctly marked.time=00:09:00.33 bitrate= 545.2kbits/s    
Broken file, keyframe not correctly marked.time=00:09:05.26 bitrate= 544.3kbits/s    
Broken file, keyframe not correctly marked.time=00:09:09.53 bitrate= 544.0kbits/s    
Broken file, keyframe not correctly marked.time=00:09:12.93 bitrate= 544.5kbits/s    
Broken file, keyframe not correctly marked.time=00:09:18.73 bitrate= 550.2kbits/s    
Broken file, keyframe not correctly marked.time=00:09:21.94 bitrate= 552.0kbits/s    
Broken file, keyframe not correctly marked.time=00:09:24.40 bitrate= 554.4kbits/s    
Broken file, keyframe not correctly marked.time=00:09:31.14 bitrate= 559.3kbits/s    
Broken file, keyframe not correctly marked.time=00:09:34.58 bitrate= 560.7kbits/s    
Broken file, keyframe not correctly marked.time=00:09:38.26 bitrate= 562.0kbits/s    
Broken file, keyframe not correctly marked.time=00:09:42.42 bitrate= 562.9kbits/s    
Broken file, keyframe not correctly marked.time=00:09:52.58 bitrate= 568.4kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:10:01.33 bitrate= 567.9kbits/s    
Broken file, keyframe not correctly marked.time=00:10:04.20 bitrate= 567.4kbits/s    
Broken file, keyframe not correctly marked.time=00:10:08.33 bitrate= 566.3kbits/s    
Broken file, keyframe not correctly marked.time=00:10:17.53 bitrate= 563.1kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:10:26.59 bitrate= 557.3kbits/s    
Broken file, keyframe not correctly marked.time=00:10:29.06 bitrate= 557.9kbits/s    
Broken file, keyframe not correctly marked.time=00:10:34.59 bitrate= 555.3kbits/s    
Broken file, keyframe not correctly marked.time=00:10:46.20 bitrate= 552.9kbits/s    
Broken file, keyframe not correctly marked.time=00:10:50.86 bitrate= 551.8kbits/s    
Broken file, keyframe not correctly marked.time=00:10:57.94 bitrate= 548.5kbits/s    
Broken file, keyframe not correctly marked.time=00:11:01.73 bitrate= 547.5kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:11:11.24 bitrate= 542.0kbits/s    
Broken file, keyframe not correctly marked.time=00:11:17.26 bitrate= 541.7kbits/s    
Broken file, keyframe not correctly marked.time=00:11:21.00 bitrate= 541.3kbits/s    
Broken file, keyframe not correctly marked.time=00:11:25.87 bitrate= 539.5kbits/s    
Broken file, keyframe not correctly marked.time=00:11:39.50 bitrate= 536.7kbits/s    
Broken file, keyframe not correctly marked.time=00:11:43.46 bitrate= 535.8kbits/s    
Broken file, keyframe not correctly marked.time=00:11:50.68 bitrate= 535.5kbits/s    
Broken file, keyframe not correctly marked.time=00:12:00.73 bitrate= 535.7kbits/s    
Broken file, keyframe not correctly marked.time=00:12:04.95 bitrate= 534.8kbits/s    
Broken file, keyframe not correctly marked.time=00:12:08.06 bitrate= 534.8kbits/s    
Broken file, keyframe not correctly marked.time=00:12:12.13 bitrate= 534.5kbits/s    
Broken file, keyframe not correctly marked.time=00:12:15.55 bitrate= 534.8kbits/s    
Broken file, keyframe not correctly marked.time=00:12:19.36 bitrate= 534.4kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:12:28.30 bitrate= 530.2kbits/s    
Broken file, keyframe not correctly marked.time=00:12:34.93 bitrate= 528.6kbits/s    
Broken file, keyframe not correctly marked.time=00:12:40.11 bitrate= 527.1kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:12:56.20 bitrate= 522.7kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:13:04.53 bitrate= 518.7kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:13:12.13 bitrate= 519.9kbits/s    
Broken file, keyframe not correctly marked.time=00:13:14.95 bitrate= 521.2kbits/s    
Broken file, keyframe not correctly marked.time=00:13:25.20 bitrate= 524.3kbits/s    
Broken file, keyframe not correctly marked.time=00:13:34.40 bitrate= 528.2kbits/s    
Broken file, keyframe not correctly marked.time=00:13:41.60 bitrate= 531.3kbits/s    
Broken file, keyframe not correctly marked.time=00:13:51.79 bitrate= 534.5kbits/s    
Broken file, keyframe not correctly marked.time=00:13:55.03 bitrate= 535.9kbits/s    
Broken file, keyframe not correctly marked.time=00:13:58.19 bitrate= 536.7kbits/s    
Broken file, keyframe not correctly marked.time=00:14:03.41 bitrate= 539.8kbits/s    
Broken file, keyframe not correctly marked.time=00:14:13.00 bitrate= 541.4kbits/s    
Broken file, keyframe not correctly marked.time=00:14:17.60 bitrate= 541.6kbits/s    
Broken file, keyframe not correctly marked.time=00:14:23.47 bitrate= 539.8kbits/s    
Broken file, keyframe not correctly marked.time=00:14:28.70 bitrate= 538.9kbits/s    
Broken file, keyframe not correctly marked.time=00:14:32.00 bitrate= 538.7kbits/s    
Broken file, keyframe not correctly marked.time=00:14:38.53 bitrate= 538.9kbits/s    
Broken file, keyframe not correctly marked.time=00:14:44.08 bitrate= 539.6kbits/s    
Broken file, keyframe not correctly marked.time=00:14:47.84 bitrate= 539.1kbits/s    
Broken file, keyframe not correctly marked.time=00:14:58.60 bitrate= 539.0kbits/s    
Broken file, keyframe not correctly marked.time=00:15:08.61 bitrate= 537.9kbits/s    
Broken file, keyframe not correctly marked.time=00:15:12.71 bitrate= 537.2kbits/s    
Broken file, keyframe not correctly marked.time=00:15:15.20 bitrate= 537.5kbits/s    
Broken file, keyframe not correctly marked.time=00:15:18.60 bitrate= 537.3kbits/s    
Broken file, keyframe not correctly marked.time=00:15:31.13 bitrate= 537.0kbits/s    
Broken file, keyframe not correctly marked.time=00:15:38.37 bitrate= 536.5kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:15:45.73 bitrate= 535.8kbits/s    
Broken file, keyframe not correctly marked.time=00:15:53.60 bitrate= 536.6kbits/s    
Broken file, keyframe not correctly marked.time=00:16:06.53 bitrate= 537.3kbits/s    
Broken file, keyframe not correctly marked.time=00:16:12.26 bitrate= 538.1kbits/s    
Broken file, keyframe not correctly marked.time=00:16:14.93 bitrate= 538.4kbits/s    
Broken file, keyframe not correctly marked.time=00:16:18.20 bitrate= 538.8kbits/s    
Broken file, keyframe not correctly marked.time=00:16:24.73 bitrate= 539.1kbits/s    
Broken file, keyframe not correctly marked.time=00:16:29.06 bitrate= 539.0kbits/s    
Broken file, keyframe not correctly marked.time=00:16:32.13 bitrate= 539.6kbits/s    
Broken file, keyframe not correctly marked.time=00:16:35.60 bitrate= 539.4kbits/s    
Broken file, keyframe not correctly marked.time=00:16:42.16 bitrate= 540.3kbits/s    
Broken file, keyframe not correctly marked.time=00:16:46.02 bitrate= 540.0kbits/s    
Broken file, keyframe not correctly marked.time=00:16:48.87 bitrate= 540.2kbits/s    
Broken file, keyframe not correctly marked.time=00:16:52.06 bitrate= 540.6kbits/s    
Broken file, keyframe not correctly marked.time=00:16:59.53 bitrate= 540.2kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:17:07.66 bitrate= 540.0kbits/s    
Broken file, keyframe not correctly marked.time=00:17:11.20 bitrate= 539.8kbits/s    
Broken file, keyframe not correctly marked.time=00:17:13.66 bitrate= 540.5kbits/s    
Broken file, keyframe not correctly marked.time=00:17:17.16 bitrate= 540.7kbits/s    
Broken file, keyframe not correctly marked.time=00:17:24.80 bitrate= 540.2kbits/s    
Broken file, keyframe not correctly marked.time=00:17:28.76 bitrate= 539.8kbits/s    
Broken file, keyframe not correctly marked.time=00:17:41.13 bitrate= 539.7kbits/s    
Broken file, keyframe not correctly marked.time=00:17:44.75 bitrate= 539.6kbits/s    
Broken file, keyframe not correctly marked.time=00:17:59.27 bitrate= 542.5kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:18:08.36 bitrate= 540.8kbits/s    
Broken file, keyframe not correctly marked.time=00:18:12.00 bitrate= 540.7kbits/s    
Broken file, keyframe not correctly marked.time=00:18:14.53 bitrate= 541.2kbits/s    
Broken file, keyframe not correctly marked.time=00:18:20.32 bitrate= 540.0kbits/s    
Broken file, keyframe not correctly marked.time=00:18:37.33 bitrate= 539.7kbits/s    
Broken file, keyframe not correctly marked.time=00:18:40.46 bitrate= 539.8kbits/s    
Broken file, keyframe not correctly marked.time=00:18:45.61 bitrate= 540.1kbits/s    
Broken file, keyframe not correctly marked.time=00:18:53.13 bitrate= 546.1kbits/s    
Broken file, keyframe not correctly marked.time=00:18:59.01 bitrate= 548.6kbits/s    
Broken file, keyframe not correctly marked.time=00:19:06.77 bitrate= 551.9kbits/s    
Broken file, keyframe not correctly marked.time=00:19:11.71 bitrate= 551.5kbits/s    
Broken file, keyframe not correctly marked.time=00:19:14.35 bitrate= 552.8kbits/s    
Broken file, keyframe not correctly marked.time=00:19:17.25 bitrate= 553.3kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:19:24.86 bitrate= 551.1kbits/s    
Broken file, keyframe not correctly marked.time=00:19:29.00 bitrate= 550.9kbits/s    
Broken file, keyframe not correctly marked.time=00:19:37.23 bitrate= 548.3kbits/s    
Broken file, keyframe not correctly marked.time=00:19:41.60 bitrate= 548.1kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:19:49.22 bitrate= 547.5kbits/s    
Broken file, keyframe not correctly marked.time=00:19:54.39 bitrate= 546.9kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:19:59.13 bitrate= 547.0kbits/s    
Broken file, keyframe not correctly marked.time=00:20:06.86 bitrate= 546.6kbits/s    
Broken file, keyframe not correctly marked.time=00:20:14.01 bitrate= 551.6kbits/s    
Broken file, keyframe not correctly marked.time=00:20:19.97 bitrate= 553.1kbits/s    
Broken file, keyframe not correctly marked.time=00:20:22.86 bitrate= 555.4kbits/s    
Broken file, keyframe not correctly marked.time=00:20:26.81 bitrate= 555.2kbits/s    
Broken file, keyframe not correctly marked.time=00:20:29.00 bitrate= 555.3kbits/s    
Broken file, keyframe not correctly marked.time=00:20:34.31 bitrate= 554.9kbits/s    
Broken file, keyframe not correctly marked.time=00:20:38.00 bitrate= 554.3kbits/s    
Broken file, keyframe not correctly marked.time=00:20:45.36 bitrate= 553.2kbits/s    
Broken file, keyframe not correctly marked.time=00:20:48.88 bitrate= 552.7kbits/s    
Broken file, keyframe not correctly marked.time=00:20:58.10 bitrate= 551.7kbits/s    
Broken file, keyframe not correctly marked.time=00:21:02.80 bitrate= 551.4kbits/s    
Broken file, keyframe not correctly marked.time=00:21:05.86 bitrate= 550.9kbits/s    
Broken file, keyframe not correctly marked.time=00:21:15.53 bitrate= 550.8kbits/s    
Broken file, keyframe not correctly marked.time=00:21:18.27 bitrate= 550.5kbits/s    
Broken file, keyframe not correctly marked.time=00:21:23.26 bitrate= 550.4kbits/s    
Broken file, keyframe not correctly marked.time=00:21:28.12 bitrate= 549.8kbits/s    
Broken file, keyframe not correctly marked.time=00:21:32.66 bitrate= 548.6kbits/s    
Broken file, keyframe not correctly marked.time=00:21:35.86 bitrate= 548.1kbits/s    
Broken file, keyframe not correctly marked.time=00:21:40.45 bitrate= 548.0kbits/s    
Broken file, keyframe not correctly marked.time=00:21:44.45 bitrate= 548.0kbits/s    
Broken file, keyframe not correctly marked.time=00:21:48.06 bitrate= 547.2kbits/s    
Broken file, keyframe not correctly marked.time=00:21:58.26 bitrate= 547.1kbits/s    
Broken file, keyframe not correctly marked.time=00:22:15.33 bitrate= 547.5kbits/s    
Broken file, keyframe not correctly marked.time=00:22:19.46 bitrate= 548.2kbits/s    
Broken file, keyframe not correctly marked.time=00:22:22.24 bitrate= 548.6kbits/s    
Broken file, keyframe not correctly marked.time=00:22:26.20 bitrate= 548.5kbits/s    
Broken file, keyframe not correctly marked.time=00:22:32.33 bitrate= 549.1kbits/s    
Broken file, keyframe not correctly marked.time=00:22:35.40 bitrate= 549.4kbits/s    
Broken file, keyframe not correctly marked.time=00:22:38.40 bitrate= 549.9kbits/s    
Broken file, keyframe not correctly marked.time=00:22:52.60 bitrate= 550.3kbits/s    
Broken file, keyframe not correctly marked.time=00:23:00.86 bitrate= 552.0kbits/s    
Broken file, keyframe not correctly marked.time=00:23:06.00 bitrate= 551.4kbits/s    
Broken file, keyframe not correctly marked.time=00:23:10.80 bitrate= 552.5kbits/s    
Broken file, keyframe not correctly marked.time=00:23:16.95 bitrate= 552.3kbits/s    
Broken file, keyframe not correctly marked.time=00:23:21.06 bitrate= 551.7kbits/s    
Broken file, keyframe not correctly marked.time=00:23:24.00 bitrate= 551.9kbits/s    
Broken file, keyframe not correctly marked.time=00:23:29.20 bitrate= 550.8kbits/s    
Broken file, keyframe not correctly marked.time=00:23:33.69 bitrate= 550.1kbits/s    
Broken file, keyframe not correctly marked.time=00:23:40.26 bitrate= 549.5kbits/s    
Broken file, keyframe not correctly marked.time=00:23:42.40 bitrate= 549.6kbits/s    
Broken file, keyframe not correctly marked.time=00:23:47.82 bitrate= 549.7kbits/s    
Broken file, keyframe not correctly marked.time=00:23:56.13 bitrate= 551.2kbits/s    
Broken file, keyframe not correctly marked.time=00:24:01.93 bitrate= 549.0kbits/s    
Broken file, keyframe not correctly marked.time=00:24:05.80 bitrate= 547.6kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:24:10.60 bitrate= 545.7kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
    Last message repeated 1 times
Broken file, keyframe not correctly marked.time=00:24:24.00 bitrate= 540.8kbits/s    
Broken file, keyframe not correctly marked.time=00:24:29.73 bitrate= 538.6kbits/s    
Broken file, keyframe not correctly marked.time=00:24:40.33 bitrate= 534.8kbits/s    
Broken file, keyframe not correctly marked.time=00:24:44.60 bitrate= 533.3kbits/s    
Broken file, keyframe not correctly marked.time=00:24:52.80 bitrate= 530.3kbits/s    
Broken file, keyframe not correctly marked.time=00:25:00.60 bitrate= 527.6kbits/s    
Broken file, keyframe not correctly marked.time=00:25:09.46 bitrate= 524.5kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:25:18.33 bitrate= 521.4kbits/s    
Broken file, keyframe not correctly marked.time=00:25:26.26 bitrate= 518.7kbits/s    
Broken file, keyframe not correctly marked.time=00:25:29.33 bitrate= 517.7kbits/s    
Broken file, keyframe not correctly marked.time=00:25:34.60 bitrate= 515.9kbits/s    
Broken file, keyframe not correctly marked.time=00:25:38.66 bitrate= 514.5kbits/s    
Broken file, keyframe not correctly marked.time=00:25:42.80 bitrate= 513.1kbits/s    
Broken file, keyframe not correctly marked.time=00:25:48.13 bitrate= 511.4kbits/s    
Broken file, keyframe not correctly marked.time=00:25:53.80 bitrate= 509.5kbits/s    
Broken file, keyframe not correctly marked.time=00:26:05.46 bitrate= 505.7kbits/s    
Broken file, keyframe not correctly marked.time=00:26:12.53 bitrate= 503.4kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:26:19.26 bitrate= 501.3kbits/s    
Broken file, keyframe not correctly marked.time=00:26:27.53 bitrate= 498.7kbits/s    
Broken file, keyframe not correctly marked.time=00:26:33.00 bitrate= 497.0kbits/s    
Broken file, keyframe not correctly marked.time=00:26:39.06 bitrate= 495.1kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:26:48.86 bitrate= 492.1kbits/s    
Broken file, keyframe not correctly marked.time=00:26:56.93 bitrate= 489.6kbits/s    
[ogg @ 0x961d5c0] Broken file, keyframe not correctly marked.
Broken file, keyframe not correctly marked.time=00:27:00.66 bitrate= 488.5kbits/s    
Broken file, keyframe not correctly marked.time=00:27:06.66 bitrate= 486.7kbits/s    
Broken file, keyframe not correctly marked.time=00:27:17.40 bitrate= 483.5kbits/s    
Broken file, keyframe not correctly marked.time=00:27:21.73 bitrate= 482.2kbits/s    
Broken file, keyframe not correctly marked.time=00:27:27.13 bitrate= 480.6kbits/s    
Broken file, keyframe not correctly marked.time=00:27:31.26 bitrate= 479.4kbits/s    
Broken file, keyframe not correctly marked.time=00:27:35.66 bitrate= 478.2kbits/s    
frame=16698 fps= 76 q=31.0 Lsize=  109158kB time=00:27:43.66 bitrate= 537.5kbits/s    
video:101633kB audio:5608kB subtitle:0 global headers:0kB muxing overhead 1.787581%
This actually works but the quality of the .avi file is very low (too low).

Has anyone an idea on how to procead ?

Jacques