dvdrip : erreur en extraction.

bonjour,
j'ai installé dvdrip 0.52.6 par synaptic.
quand je lance l'extraction dvd ça plante.

_quelques infos et les messages d'erreurs_ :

$ *uname -a*
Linux truc 2.6.12 #2 SMP Tue Aug 9 23:20:52 CEST 2005 i686 GNU/Linux

*etc/apt/sources.list* :
deb http://ftp.debian.org/debian/ etch main non-free contrib
deb ftp://ftp.nerim.net/debian-marillat/ etch main

*vérification des dépendances dvdrip* :
transcode 0.6.14
imagemagick 6.0.6
xvid4conf 1.12
subtitle2pgm 0.3
rar 2.80
mplayer cvs
ogmtools 1.5
dvdxchap 1.5
mjpegtools 1.6.2
cdrdao 1.1.9
vcdimager 0.7.21
mkisofs 2.01
cdrecord 2.6.12
*dvdrecord MISSING* (je l'ai pas trouvé dans les paquets debian)
xine 0.99.3
fping 2.4

Dans l'onglet "Extraction" je clique sur "extraire les titres ou
chapitres selectionnés"

*premier message erreur dvdrip* :
Ãchec de la tâche 'Capture de l'aperçu - titre n°1 ,image n°6'.

Commande exécutée : mkdir -m 0775 /tmp/dvdrip18243.ppm; cd
/tmp/dvdrip18243.ppm; dr_exec transcode -H 10 -o snapshot -y ppm,null
-x vob,null -i /mnt/sda5/dvdrip/data/unnamed/vob/001/ -c 6-7 -L 0 &&
dr_exec convert -size 720x576 /tmp/dvdrip18243.ppm/snapshot*.ppm
/mnt/sda5/dvdrip/data/unnamed/tmp/unnamed-001-preview-orig.jpg &&
dr_exec convert -size 720x576 /tmp/dvdrip18243.ppm/snapshot*.ppm
gray:/mnt/sda5/dvdrip/data/unnamed/tmp/unnamed-001-preview-orig.raw &&
rm -r /tmp/dvdrip18243.ppm && echo DVDRIP_SUCCESS

Le dernier message était :

perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = "fr",
LC_ALL = "fr",
LC_MESSAGES = "",
LANG = "fr_FR@euro"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

transcode v0.6.14 (C) 2001-2003 Thomas Oestreich, 2003-2004 T. Bitterberg
libdvdread: Using libdvdcss version 1.2.9 for DVD access
libdvdread: Couldn't find device name.
libdvdread: Can't open file VIDEO_TS.IFO.
tc_memcpy: using mmxext for memcpy
[import_null.so] v0.2.0 (2002-01-19) (video) null | (audio) null
[import_vob.so] v0.6.0 (2003-10-02) (video) MPEG-2 | (audio)
MPEG/AC3/PCM | (subtitle)
[transcode] warning : libavcodec-cvs.so: cannot open shared object file:
No such file or directory
[transcode] (probe) suggested AV correction -D 2 (80 ms) | AV 80 ms | 0 ms
[transcode] auto-probing source /mnt/sda5/dvdrip/data/unnamed/vob/001/ (ok)
[transcode] V: import format | MPEG-2 (V=vob|A=null)
[transcode] V: AV demux/sync | (1) sync AV at initial MPEG sequence
[transcode] V: import frame | 720x576 1.25:1 encoded @ 4:3
[transcode] V: bits/pixel | 0.174
[transcode] V: decoding fps,frc | 25.000,3
[transcode] V: Y'CbCr | YV12/I420
[transcode] A: import format | 0x2000 AC3 [48000,16,2] 256
kbps
[transcode] A: export | disabled
[transcode] V: encoding fps,frc | 25.000,3
[transcode] A: bytes per frame | 7680 (7680.000000)
[transcode] A: adjustment | 0@1000
[transcode] V: IA32 accel mode | sse (sse mmxext mmx asm C)
[transcode] V: video buffer | 10 @ 720x576
[transcode] warning : (dl_loader.c) loading
"/usr/lib/transcode/export_ppm.so" failed
[transcode] warning : (encoder.c) loading video export module failed
[transcode] warning : failed to init export modules
[transcode] critical: plug-in initialization failed

je fais ok puis :

*deuxieme message erreur dvdrip* :
WARNING: it seems that transcode ripping stopped short.
The movie has 135125 frames, but only 12
were ripped. This is most likely a problem with your
transcode/libdvdread installation, resp. a problem with
this specific DVD.

voilà.
si quelqu'un avait une idée?
merci

ps: un detail. les caractères du menu de dvdrip sont un peu dans ce
style :
exécutée
on comprend mais bon. si vous aviez un truc...




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